Home / 115,318.74-172,999.02-52,168.62

Finding the Fourth Proportional to 115,318.74, 172,999.02 and 52,168.62

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Solution

The fourth proportional to 115,318.74, 172,999.02 and 52,168.62 is: 78,262.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,318.74 : 172,999.02 = 52,168.62 : x
  2. Step 2: Convert to fraction form
    115,318.74/172,999.02 = 52,168.62/x
  3. Step 3: Cross multiply
    115,318.74x = 172,999.02 × 52,168.62
  4. Step 4: Simplify right side
    115,318.74x = 9,025,120,134.75
  5. Step 5: Solve for x
    x = 9,025,120,134.75/115,318.74
  6. Step 6: Final answer
    x = 78,262.39

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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.