Home / 115,500.18-172,961.10-73,252.20

Finding the Fourth Proportional to 115,500.18, 172,961.10 and 73,252.20

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Solution

The fourth proportional to 115,500.18, 172,961.10 and 73,252.20 is: 109,694.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,500.18 : 172,961.10 = 73,252.20 : x
  2. Step 2: Convert to fraction form
    115,500.18/172,961.10 = 73,252.20/x
  3. Step 3: Cross multiply
    115,500.18x = 172,961.10 × 73,252.20
  4. Step 4: Simplify right side
    115,500.18x = 12,669,781,089.42
  5. Step 5: Solve for x
    x = 12,669,781,089.42/115,500.18
  6. Step 6: Final answer
    x = 109,694.90

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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.