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Finding the Fourth Proportional to 155,592, 214,704.20 and 87,587.24

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Solution

The fourth proportional to 155,592, 214,704.20 and 87,587.24 is: 120,863.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,592 : 214,704.20 = 87,587.24 : x
  2. Step 2: Convert to fraction form
    155,592/214,704.20 = 87,587.24/x
  3. Step 3: Cross multiply
    155,592x = 214,704.20 × 87,587.24
  4. Step 4: Simplify right side
    155,592x = 18,805,348,294.41
  5. Step 5: Solve for x
    x = 18,805,348,294.41/155,592
  6. Step 6: Final answer
    x = 120,863.21

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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.