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Finding the Fourth Proportional to 107,677.42, 148,600.11 and 65,239.90

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Solution

The fourth proportional to 107,677.42, 148,600.11 and 65,239.90 is: 90,034.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,677.42 : 148,600.11 = 65,239.90 : x
  2. Step 2: Convert to fraction form
    107,677.42/148,600.11 = 65,239.90/x
  3. Step 3: Cross multiply
    107,677.42x = 148,600.11 × 65,239.90
  4. Step 4: Simplify right side
    107,677.42x = 9,694,656,316.39
  5. Step 5: Solve for x
    x = 9,694,656,316.39/107,677.42
  6. Step 6: Final answer
    x = 90,034.26

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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.