Home / 84,822.10-127,233.15-80,545.30

Finding the Fourth Proportional to 84,822.10, 127,233.15 and 80,545.30

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Solution

The fourth proportional to 84,822.10, 127,233.15 and 80,545.30 is: 120,817.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,822.10 : 127,233.15 = 80,545.30 : x
  2. Step 2: Convert to fraction form
    84,822.10/127,233.15 = 80,545.30/x
  3. Step 3: Cross multiply
    84,822.10x = 127,233.15 × 80,545.30
  4. Step 4: Simplify right side
    84,822.10x = 10,248,032,236.70
  5. Step 5: Solve for x
    x = 10,248,032,236.70/84,822.10
  6. Step 6: Final answer
    x = 120,817.95

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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.