Home / 129,282.39-193,954.65-40,535.91

Finding the Fourth Proportional to 129,282.39, 193,954.65 and 40,535.91

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Solution

The fourth proportional to 129,282.39, 193,954.65 and 40,535.91 is: 60,813.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,282.39 : 193,954.65 = 40,535.91 : x
  2. Step 2: Convert to fraction form
    129,282.39/193,954.65 = 40,535.91/x
  3. Step 3: Cross multiply
    129,282.39x = 193,954.65 × 40,535.91
  4. Step 4: Simplify right side
    129,282.39x = 7,862,128,236.48
  5. Step 5: Solve for x
    x = 7,862,128,236.48/129,282.39
  6. Step 6: Final answer
    x = 60,813.61

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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.