Home / 123,428.12-170,330.92-69,713.24

Finding the Fourth Proportional to 123,428.12, 170,330.92 and 69,713.24

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Solution

The fourth proportional to 123,428.12, 170,330.92 and 69,713.24 is: 96,204.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,428.12 : 170,330.92 = 69,713.24 : x
  2. Step 2: Convert to fraction form
    123,428.12/170,330.92 = 69,713.24/x
  3. Step 3: Cross multiply
    123,428.12x = 170,330.92 × 69,713.24
  4. Step 4: Simplify right side
    123,428.12x = 11,874,319,279.44
  5. Step 5: Solve for x
    x = 11,874,319,279.44/123,428.12
  6. Step 6: Final answer
    x = 96,204.33

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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.