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Finding the Fourth Proportional to 115,207.60, 172,811.40 and 88,963.60

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Solution

The fourth proportional to 115,207.60, 172,811.40 and 88,963.60 is: 133,445.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,207.60 : 172,811.40 = 88,963.60 : x
  2. Step 2: Convert to fraction form
    115,207.60/172,811.40 = 88,963.60/x
  3. Step 3: Cross multiply
    115,207.60x = 172,811.40 × 88,963.60
  4. Step 4: Simplify right side
    115,207.60x = 15,373,924,265.04
  5. Step 5: Solve for x
    x = 15,373,924,265.04/115,207.60
  6. Step 6: Final answer
    x = 133,445.40

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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.