Home / 124,826.80-187,240.20-72,338.80

Finding the Fourth Proportional to 124,826.80, 187,240.20 and 72,338.80

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Solution

The fourth proportional to 124,826.80, 187,240.20 and 72,338.80 is: 108,508.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,826.80 : 187,240.20 = 72,338.80 : x
  2. Step 2: Convert to fraction form
    124,826.80/187,240.20 = 72,338.80/x
  3. Step 3: Cross multiply
    124,826.80x = 187,240.20 × 72,338.80
  4. Step 4: Simplify right side
    124,826.80x = 13,544,731,379.76
  5. Step 5: Solve for x
    x = 13,544,731,379.76/124,826.80
  6. Step 6: Final answer
    x = 108,508.20

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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.