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Finding the Fourth Proportional to 141,128, 211,692 and 42,632

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Solution

The fourth proportional to 141,128, 211,692 and 42,632 is: 63,948

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,128 : 211,692 = 42,632 : x
  2. Step 2: Convert to fraction form
    141,128/211,692 = 42,632/x
  3. Step 3: Cross multiply
    141,128x = 211,692 × 42,632
  4. Step 4: Simplify right side
    141,128x = 9,024,853,344
  5. Step 5: Solve for x
    x = 9,024,853,344/141,128
  6. Step 6: Final answer
    x = 63,948

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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.