Home / 124,220.80-186,331.20-88,791.40

Finding the Fourth Proportional to 124,220.80, 186,331.20 and 88,791.40

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Solution

The fourth proportional to 124,220.80, 186,331.20 and 88,791.40 is: 133,187.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,220.80 : 186,331.20 = 88,791.40 : x
  2. Step 2: Convert to fraction form
    124,220.80/186,331.20 = 88,791.40/x
  3. Step 3: Cross multiply
    124,220.80x = 186,331.20 × 88,791.40
  4. Step 4: Simplify right side
    124,220.80x = 16,544,608,111.68
  5. Step 5: Solve for x
    x = 16,544,608,111.68/124,220.80
  6. Step 6: Final answer
    x = 133,187.10

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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.