Home / 115,046.79-172,611.71-40,177.98

Finding the Fourth Proportional to 115,046.79, 172,611.71 and 40,177.98

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Solution

The fourth proportional to 115,046.79, 172,611.71 and 40,177.98 is: 60,281.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,046.79 : 172,611.71 = 40,177.98 : x
  2. Step 2: Convert to fraction form
    115,046.79/172,611.71 = 40,177.98/x
  3. Step 3: Cross multiply
    115,046.79x = 172,611.71 × 40,177.98
  4. Step 4: Simplify right side
    115,046.79x = 6,935,189,781.92
  5. Step 5: Solve for x
    x = 6,935,189,781.92/115,046.79
  6. Step 6: Final answer
    x = 60,281.47

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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.