Home / 123,500.52-170,428.50-69,784.38

Finding the Fourth Proportional to 123,500.52, 170,428.50 and 69,784.38

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Solution

The fourth proportional to 123,500.52, 170,428.50 and 69,784.38 is: 96,301.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,500.52 : 170,428.50 = 69,784.38 : x
  2. Step 2: Convert to fraction form
    123,500.52/170,428.50 = 69,784.38/x
  3. Step 3: Cross multiply
    123,500.52x = 170,428.50 × 69,784.38
  4. Step 4: Simplify right side
    123,500.52x = 11,893,246,857.91
  5. Step 5: Solve for x
    x = 11,893,246,857.91/123,500.52
  6. Step 6: Final answer
    x = 96,301.19

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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.