Home / 138,497.57-191,084.15-84,726.53

Finding the Fourth Proportional to 138,497.57, 191,084.15 and 84,726.53

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Solution

The fourth proportional to 138,497.57, 191,084.15 and 84,726.53 is: 116,896.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,497.57 : 191,084.15 = 84,726.53 : x
  2. Step 2: Convert to fraction form
    138,497.57/191,084.15 = 84,726.53/x
  3. Step 3: Cross multiply
    138,497.57x = 191,084.15 × 84,726.53
  4. Step 4: Simplify right side
    138,497.57x = 16,189,895,588.45
  5. Step 5: Solve for x
    x = 16,189,895,588.45/138,497.57
  6. Step 6: Final answer
    x = 116,896.61

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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.