Home / 124,791.15-172,247.10-73,821.57

Finding the Fourth Proportional to 124,791.15, 172,247.10 and 73,821.57

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Solution

The fourth proportional to 124,791.15, 172,247.10 and 73,821.57 is: 101,894.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,791.15 : 172,247.10 = 73,821.57 : x
  2. Step 2: Convert to fraction form
    124,791.15/172,247.10 = 73,821.57/x
  3. Step 3: Cross multiply
    124,791.15x = 172,247.10 × 73,821.57
  4. Step 4: Simplify right side
    124,791.15x = 12,715,551,349.95
  5. Step 5: Solve for x
    x = 12,715,551,349.95/124,791.15
  6. Step 6: Final answer
    x = 101,894.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.