Home / 146,721.70-220,082.55-136,807.30

Finding the Fourth Proportional to 146,721.70, 220,082.55 and 136,807.30

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Solution

The fourth proportional to 146,721.70, 220,082.55 and 136,807.30 is: 205,210.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,721.70 : 220,082.55 = 136,807.30 : x
  2. Step 2: Convert to fraction form
    146,721.70/220,082.55 = 136,807.30/x
  3. Step 3: Cross multiply
    146,721.70x = 220,082.55 × 136,807.30
  4. Step 4: Simplify right side
    146,721.70x = 30,108,899,442.62
  5. Step 5: Solve for x
    x = 30,108,899,442.62/146,721.70
  6. Step 6: Final answer
    x = 205,210.95

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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.