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Finding the Fourth Proportional to 142,772.95, 214,159.91 and 36,156.87

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Solution

The fourth proportional to 142,772.95, 214,159.91 and 36,156.87 is: 54,235.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,772.95 : 214,159.91 = 36,156.87 : x
  2. Step 2: Convert to fraction form
    142,772.95/214,159.91 = 36,156.87/x
  3. Step 3: Cross multiply
    142,772.95x = 214,159.91 × 36,156.87
  4. Step 4: Simplify right side
    142,772.95x = 7,743,350,954.28
  5. Step 5: Solve for x
    x = 7,743,350,954.28/142,772.95
  6. Step 6: Final answer
    x = 54,235.42

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1.5x scale

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.