Home / 231,715.02-319,757.87-129,730.94

Finding the Fourth Proportional to 231,715.02, 319,757.87 and 129,730.94

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Solution

The fourth proportional to 231,715.02, 319,757.87 and 129,730.94 is: 179,023.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,715.02 : 319,757.87 = 129,730.94 : x
  2. Step 2: Convert to fraction form
    231,715.02/319,757.87 = 129,730.94/x
  3. Step 3: Cross multiply
    231,715.02x = 319,757.87 × 129,730.94
  4. Step 4: Simplify right side
    231,715.02x = 41,482,486,800.05
  5. Step 5: Solve for x
    x = 41,482,486,800.05/231,715.02
  6. Step 6: Final answer
    x = 179,023.73

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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.