Home / 163,856.20-245,525.10-137,417.80

Finding the Fourth Proportional to 163,856.20, 245,525.10 and 137,417.80

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Solution

The fourth proportional to 163,856.20, 245,525.10 and 137,417.80 is: 205,909.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,856.20 : 245,525.10 = 137,417.80 : x
  2. Step 2: Convert to fraction form
    163,856.20/245,525.10 = 137,417.80/x
  3. Step 3: Cross multiply
    163,856.20x = 245,525.10 × 137,417.80
  4. Step 4: Simplify right side
    163,856.20x = 33,739,519,086.78
  5. Step 5: Solve for x
    x = 33,739,519,086.78/163,856.20
  6. Step 6: Final answer
    x = 205,909.32

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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.