Home / 91,376.70-136,732.89-75,433.47

Finding the Fourth Proportional to 91,376.70, 136,732.89 and 75,433.47

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Solution

The fourth proportional to 91,376.70, 136,732.89 and 75,433.47 is: 112,876.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,376.70 : 136,732.89 = 75,433.47 : x
  2. Step 2: Convert to fraction form
    91,376.70/136,732.89 = 75,433.47/x
  3. Step 3: Cross multiply
    91,376.70x = 136,732.89 × 75,433.47
  4. Step 4: Simplify right side
    91,376.70x = 10,314,236,355.83
  5. Step 5: Solve for x
    x = 10,314,236,355.83/91,376.70
  6. Step 6: Final answer
    x = 112,876.00

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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.