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Finding the Fourth Proportional to 101,945.93, 152,919 and 38,751.20

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Solution

The fourth proportional to 101,945.93, 152,919 and 38,751.20 is: 58,126.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,945.93 : 152,919 = 38,751.20 : x
  2. Step 2: Convert to fraction form
    101,945.93/152,919 = 38,751.20/x
  3. Step 3: Cross multiply
    101,945.93x = 152,919 × 38,751.20
  4. Step 4: Simplify right side
    101,945.93x = 5,925,794,752.80
  5. Step 5: Solve for x
    x = 5,925,794,752.80/101,945.93
  6. Step 6: Final answer
    x = 58,126.84

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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.