Home / 124,727.60-187,091.40-74,961.20

Finding the Fourth Proportional to 124,727.60, 187,091.40 and 74,961.20

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Solution

The fourth proportional to 124,727.60, 187,091.40 and 74,961.20 is: 112,441.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,727.60 : 187,091.40 = 74,961.20 : x
  2. Step 2: Convert to fraction form
    124,727.60/187,091.40 = 74,961.20/x
  3. Step 3: Cross multiply
    124,727.60x = 187,091.40 × 74,961.20
  4. Step 4: Simplify right side
    124,727.60x = 14,024,595,853.68
  5. Step 5: Solve for x
    x = 14,024,595,853.68/124,727.60
  6. Step 6: Final answer
    x = 112,441.80

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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.