Home / 175,729.40-242,465.10-100,302.20

Finding the Fourth Proportional to 175,729.40, 242,465.10 and 100,302.20

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Solution

The fourth proportional to 175,729.40, 242,465.10 and 100,302.20 is: 138,393.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,729.40 : 242,465.10 = 100,302.20 : x
  2. Step 2: Convert to fraction form
    175,729.40/242,465.10 = 100,302.20/x
  3. Step 3: Cross multiply
    175,729.40x = 242,465.10 × 100,302.20
  4. Step 4: Simplify right side
    175,729.40x = 24,319,782,953.22
  5. Step 5: Solve for x
    x = 24,319,782,953.22/175,729.40
  6. Step 6: Final answer
    x = 138,393.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.