Home / 91,983.30-137,974.95-68,363.70

Finding the Fourth Proportional to 91,983.30, 137,974.95 and 68,363.70

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Solution

The fourth proportional to 91,983.30, 137,974.95 and 68,363.70 is: 102,545.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,983.30 : 137,974.95 = 68,363.70 : x
  2. Step 2: Convert to fraction form
    91,983.30/137,974.95 = 68,363.70/x
  3. Step 3: Cross multiply
    91,983.30x = 137,974.95 × 68,363.70
  4. Step 4: Simplify right side
    91,983.30x = 9,432,478,089.32
  5. Step 5: Solve for x
    x = 9,432,478,089.32/91,983.30
  6. Step 6: Final answer
    x = 102,545.55

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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.