Home / 123,577.89-170,543.18-69,865.17

Finding the Fourth Proportional to 123,577.89, 170,543.18 and 69,865.17

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Solution

The fourth proportional to 123,577.89, 170,543.18 and 69,865.17 is: 96,417.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,577.89 : 170,543.18 = 69,865.17 : x
  2. Step 2: Convert to fraction form
    123,577.89/170,543.18 = 69,865.17/x
  3. Step 3: Cross multiply
    123,577.89x = 170,543.18 × 69,865.17
  4. Step 4: Simplify right side
    123,577.89x = 11,915,028,263.04
  5. Step 5: Solve for x
    x = 11,915,028,263.04/123,577.89
  6. Step 6: Final answer
    x = 96,417.15

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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.