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Finding the Fourth Proportional to 100,686.67, 151,036.67 and 29,615.66

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Solution

The fourth proportional to 100,686.67, 151,036.67 and 29,615.66 is: 44,425.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,686.67 : 151,036.67 = 29,615.66 : x
  2. Step 2: Convert to fraction form
    100,686.67/151,036.67 = 29,615.66/x
  3. Step 3: Cross multiply
    100,686.67x = 151,036.67 × 29,615.66
  4. Step 4: Simplify right side
    100,686.67x = 4,473,051,084.56
  5. Step 5: Solve for x
    x = 4,473,051,084.56/100,686.67
  6. Step 6: Final answer
    x = 44,425.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.