Home / 124,733.40-187,100.10-72,115.80

Finding the Fourth Proportional to 124,733.40, 187,100.10 and 72,115.80

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Solution

The fourth proportional to 124,733.40, 187,100.10 and 72,115.80 is: 108,173.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,733.40 : 187,100.10 = 72,115.80 : x
  2. Step 2: Convert to fraction form
    124,733.40/187,100.10 = 72,115.80/x
  3. Step 3: Cross multiply
    124,733.40x = 187,100.10 × 72,115.80
  4. Step 4: Simplify right side
    124,733.40x = 13,492,873,391.58
  5. Step 5: Solve for x
    x = 13,492,873,391.58/124,733.40
  6. Step 6: Final answer
    x = 108,173.70

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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.