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Finding the Fourth Proportional to 123,099.96, 169,875.90 and 69,385.08

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Solution

The fourth proportional to 123,099.96, 169,875.90 and 69,385.08 is: 95,750.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,099.96 : 169,875.90 = 69,385.08 : x
  2. Step 2: Convert to fraction form
    123,099.96/169,875.90 = 69,385.08/x
  3. Step 3: Cross multiply
    123,099.96x = 169,875.90 × 69,385.08
  4. Step 4: Simplify right side
    123,099.96x = 11,786,852,911.57
  5. Step 5: Solve for x
    x = 11,786,852,911.57/123,099.96
  6. Step 6: Final answer
    x = 95,750.26

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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.