Home / 91,414.36-137,170.75-91,136.13

Finding the Fourth Proportional to 91,414.36, 137,170.75 and 91,136.13

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Solution

The fourth proportional to 91,414.36, 137,170.75 and 91,136.13 is: 136,753.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,414.36 : 137,170.75 = 91,136.13 : x
  2. Step 2: Convert to fraction form
    91,414.36/137,170.75 = 91,136.13/x
  3. Step 3: Cross multiply
    91,414.36x = 137,170.75 × 91,136.13
  4. Step 4: Simplify right side
    91,414.36x = 12,501,211,304.20
  5. Step 5: Solve for x
    x = 12,501,211,304.20/91,414.36
  6. Step 6: Final answer
    x = 136,753.26

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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.