Home / 161,838-242,757-51,030

Finding the Fourth Proportional to 161,838, 242,757 and 51,030

Calculator

Solution

The fourth proportional to 161,838, 242,757 and 51,030 is: 76,545

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,838 : 242,757 = 51,030 : x
  2. Step 2: Convert to fraction form
    161,838/242,757 = 51,030/x
  3. Step 3: Cross multiply
    161,838x = 242,757 × 51,030
  4. Step 4: Simplify right side
    161,838x = 12,387,889,710
  5. Step 5: Solve for x
    x = 12,387,889,710/161,838
  6. Step 6: Final answer
    x = 76,545

Related Problems

Find fourth proportional to 80,919, 121,378.50 and 25,515
Half scale
Find fourth proportional to 323,676, 485,514 and 102,060
Double scale
Find fourth proportional to 161,839, 242,758.50 and 51,031
Similar ratio
Find fourth proportional to 242,757, 364,135.50 and 76,545
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.