Home / 136,531.68-188,405.95-75,265.61

Finding the Fourth Proportional to 136,531.68, 188,405.95 and 75,265.61

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Solution

The fourth proportional to 136,531.68, 188,405.95 and 75,265.61 is: 103,862.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,531.68 : 188,405.95 = 75,265.61 : x
  2. Step 2: Convert to fraction form
    136,531.68/188,405.95 = 75,265.61/x
  3. Step 3: Cross multiply
    136,531.68x = 188,405.95 × 75,265.61
  4. Step 4: Simplify right side
    136,531.68x = 14,180,487,765.31
  5. Step 5: Solve for x
    x = 14,180,487,765.31/136,531.68
  6. Step 6: Final answer
    x = 103,862.25

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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.