Home / 99,761.14-137,626.93-65,725.95

Finding the Fourth Proportional to 99,761.14, 137,626.93 and 65,725.95

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Solution

The fourth proportional to 99,761.14, 137,626.93 and 65,725.95 is: 90,673.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,761.14 : 137,626.93 = 65,725.95 : x
  2. Step 2: Convert to fraction form
    99,761.14/137,626.93 = 65,725.95/x
  3. Step 3: Cross multiply
    99,761.14x = 137,626.93 × 65,725.95
  4. Step 4: Simplify right side
    99,761.14x = 9,045,660,719.83
  5. Step 5: Solve for x
    x = 9,045,660,719.83/99,761.14
  6. Step 6: Final answer
    x = 90,673.19

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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.