Home / 124,745.80-172,172.82-74,472.52

Finding the Fourth Proportional to 124,745.80, 172,172.82 and 74,472.52

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Solution

The fourth proportional to 124,745.80, 172,172.82 and 74,472.52 is: 102,786.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,745.80 : 172,172.82 = 74,472.52 : x
  2. Step 2: Convert to fraction form
    124,745.80/172,172.82 = 74,472.52/x
  3. Step 3: Cross multiply
    124,745.80x = 172,172.82 × 74,472.52
  4. Step 4: Simplify right side
    124,745.80x = 12,822,143,780.91
  5. Step 5: Solve for x
    x = 12,822,143,780.91/124,745.80
  6. Step 6: Final answer
    x = 102,786.18

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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.