Home / 99,664.20-149,496.30-77,545.80

Finding the Fourth Proportional to 99,664.20, 149,496.30 and 77,545.80

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Solution

The fourth proportional to 99,664.20, 149,496.30 and 77,545.80 is: 116,318.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,664.20 : 149,496.30 = 77,545.80 : x
  2. Step 2: Convert to fraction form
    99,664.20/149,496.30 = 77,545.80/x
  3. Step 3: Cross multiply
    99,664.20x = 149,496.30 × 77,545.80
  4. Step 4: Simplify right side
    99,664.20x = 11,592,810,180.54
  5. Step 5: Solve for x
    x = 11,592,810,180.54/99,664.20
  6. Step 6: Final answer
    x = 116,318.70

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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.