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Finding the Fourth Proportional to 123,008.16, 169,750.51 and 69,310.47

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Solution

The fourth proportional to 123,008.16, 169,750.51 and 69,310.47 is: 95,648.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,008.16 : 169,750.51 = 69,310.47 : x
  2. Step 2: Convert to fraction form
    123,008.16/169,750.51 = 69,310.47/x
  3. Step 3: Cross multiply
    123,008.16x = 169,750.51 × 69,310.47
  4. Step 4: Simplify right side
    123,008.16x = 11,765,487,630.84
  5. Step 5: Solve for x
    x = 11,765,487,630.84/123,008.16
  6. Step 6: Final answer
    x = 95,648.03

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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.