Home / 91,970.46-137,882.37-84,589.74

Finding the Fourth Proportional to 91,970.46, 137,882.37 and 84,589.74

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Solution

The fourth proportional to 91,970.46, 137,882.37 and 84,589.74 is: 126,817.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,970.46 : 137,882.37 = 84,589.74 : x
  2. Step 2: Convert to fraction form
    91,970.46/137,882.37 = 84,589.74/x
  3. Step 3: Cross multiply
    91,970.46x = 137,882.37 × 84,589.74
  4. Step 4: Simplify right side
    91,970.46x = 11,663,433,828.88
  5. Step 5: Solve for x
    x = 11,663,433,828.88/91,970.46
  6. Step 6: Final answer
    x = 126,817.17

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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.