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Finding the Fourth Proportional to 172,627.52, 238,168.96 and 140,741.60

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Solution

The fourth proportional to 172,627.52, 238,168.96 and 140,741.60 is: 194,176.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,627.52 : 238,168.96 = 140,741.60 : x
  2. Step 2: Convert to fraction form
    172,627.52/238,168.96 = 140,741.60/x
  3. Step 3: Cross multiply
    172,627.52x = 238,168.96 × 140,741.60
  4. Step 4: Simplify right side
    172,627.52x = 33,520,280,500.74
  5. Step 5: Solve for x
    x = 33,520,280,500.74/172,627.52
  6. Step 6: Final answer
    x = 194,176.92

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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.