Home / 123,619.28-170,605.17-69,913.85

Finding the Fourth Proportional to 123,619.28, 170,605.17 and 69,913.85

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Solution

The fourth proportional to 123,619.28, 170,605.17 and 69,913.85 is: 96,487.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,619.28 : 170,605.17 = 69,913.85 : x
  2. Step 2: Convert to fraction form
    123,619.28/170,605.17 = 69,913.85/x
  3. Step 3: Cross multiply
    123,619.28x = 170,605.17 × 69,913.85
  4. Step 4: Simplify right side
    123,619.28x = 11,927,663,411.58
  5. Step 5: Solve for x
    x = 11,927,663,411.58/123,619.28
  6. Step 6: Final answer
    x = 96,487.08

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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.