Home / 115,218.18-172,708.50-44,121.39

Finding the Fourth Proportional to 115,218.18, 172,708.50 and 44,121.39

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Solution

The fourth proportional to 115,218.18, 172,708.50 and 44,121.39 is: 66,136.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,218.18 : 172,708.50 = 44,121.39 : x
  2. Step 2: Convert to fraction form
    115,218.18/172,708.50 = 44,121.39/x
  3. Step 3: Cross multiply
    115,218.18x = 172,708.50 × 44,121.39
  4. Step 4: Simplify right side
    115,218.18x = 7,620,139,084.82
  5. Step 5: Solve for x
    x = 7,620,139,084.82/115,218.18
  6. Step 6: Final answer
    x = 66,136.60

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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.