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Finding the Fourth Proportional to 123,117.88, 169,892.47 and 69,416.10

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Solution

The fourth proportional to 123,117.88, 169,892.47 and 69,416.10 is: 95,788.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,117.88 : 169,892.47 = 69,416.10 : x
  2. Step 2: Convert to fraction form
    123,117.88/169,892.47 = 69,416.10/x
  3. Step 3: Cross multiply
    123,117.88x = 169,892.47 × 69,416.10
  4. Step 4: Simplify right side
    123,117.88x = 11,793,272,686.77
  5. Step 5: Solve for x
    x = 11,793,272,686.77/123,117.88
  6. Step 6: Final answer
    x = 95,788.46

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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.