Home / 316,731.60-475,366.20-129,877.20

Finding the Fourth Proportional to 316,731.60, 475,366.20 and 129,877.20

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Solution

The fourth proportional to 316,731.60, 475,366.20 and 129,877.20 is: 194,926.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,731.60 : 475,366.20 = 129,877.20 : x
  2. Step 2: Convert to fraction form
    316,731.60/475,366.20 = 129,877.20/x
  3. Step 3: Cross multiply
    316,731.60x = 475,366.20 × 129,877.20
  4. Step 4: Simplify right side
    316,731.60x = 61,739,231,030.64
  5. Step 5: Solve for x
    x = 61,739,231,030.64/316,731.60
  6. Step 6: Final answer
    x = 194,926.02

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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.