Home / 159,821.70-239,732.55-100,724.10

Finding the Fourth Proportional to 159,821.70, 239,732.55 and 100,724.10

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Solution

The fourth proportional to 159,821.70, 239,732.55 and 100,724.10 is: 151,086.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,821.70 : 239,732.55 = 100,724.10 : x
  2. Step 2: Convert to fraction form
    159,821.70/239,732.55 = 100,724.10/x
  3. Step 3: Cross multiply
    159,821.70x = 239,732.55 × 100,724.10
  4. Step 4: Simplify right side
    159,821.70x = 24,146,845,339.46
  5. Step 5: Solve for x
    x = 24,146,845,339.46/159,821.70
  6. Step 6: Final answer
    x = 151,086.15

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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.