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Finding the Fourth Proportional to 172,110.60, 258,165.90 and 53,818.20

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Solution

The fourth proportional to 172,110.60, 258,165.90 and 53,818.20 is: 80,727.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,110.60 : 258,165.90 = 53,818.20 : x
  2. Step 2: Convert to fraction form
    172,110.60/258,165.90 = 53,818.20/x
  3. Step 3: Cross multiply
    172,110.60x = 258,165.90 × 53,818.20
  4. Step 4: Simplify right side
    172,110.60x = 13,894,024,039.38
  5. Step 5: Solve for x
    x = 13,894,024,039.38/172,110.60
  6. Step 6: Final answer
    x = 80,727.30

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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.