Home / 172,270.13-258,142.07-72,375.71

Finding the Fourth Proportional to 172,270.13, 258,142.07 and 72,375.71

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Solution

The fourth proportional to 172,270.13, 258,142.07 and 72,375.71 is: 108,453.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,270.13 : 258,142.07 = 72,375.71 : x
  2. Step 2: Convert to fraction form
    172,270.13/258,142.07 = 72,375.71/x
  3. Step 3: Cross multiply
    172,270.13x = 258,142.07 × 72,375.71
  4. Step 4: Simplify right side
    172,270.13x = 18,683,213,944.53
  5. Step 5: Solve for x
    x = 18,683,213,944.53/172,270.13
  6. Step 6: Final answer
    x = 108,453.01

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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.