Home / 115,034.60-172,602.12-40,208.43

Finding the Fourth Proportional to 115,034.60, 172,602.12 and 40,208.43

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Solution

The fourth proportional to 115,034.60, 172,602.12 and 40,208.43 is: 60,330.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,034.60 : 172,602.12 = 40,208.43 : x
  2. Step 2: Convert to fraction form
    115,034.60/172,602.12 = 40,208.43/x
  3. Step 3: Cross multiply
    115,034.60x = 172,602.12 × 40,208.43
  4. Step 4: Simplify right side
    115,034.60x = 6,940,061,057.91
  5. Step 5: Solve for x
    x = 6,940,061,057.91/115,034.60
  6. Step 6: Final answer
    x = 60,330.21

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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.