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Finding the Fourth Proportional to 162,339.59, 224,024.47 and 90,720.20

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Solution

The fourth proportional to 162,339.59, 224,024.47 and 90,720.20 is: 125,191.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,339.59 : 224,024.47 = 90,720.20 : x
  2. Step 2: Convert to fraction form
    162,339.59/224,024.47 = 90,720.20/x
  3. Step 3: Cross multiply
    162,339.59x = 224,024.47 × 90,720.20
  4. Step 4: Simplify right side
    162,339.59x = 20,323,545,056.55
  5. Step 5: Solve for x
    x = 20,323,545,056.55/162,339.59
  6. Step 6: Final answer
    x = 125,191.55

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1.5x scale

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.