Home / 159,619.90-239,429.85-103,632.70

Finding the Fourth Proportional to 159,619.90, 239,429.85 and 103,632.70

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Solution

The fourth proportional to 159,619.90, 239,429.85 and 103,632.70 is: 155,449.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,619.90 : 239,429.85 = 103,632.70 : x
  2. Step 2: Convert to fraction form
    159,619.90/239,429.85 = 103,632.70/x
  3. Step 3: Cross multiply
    159,619.90x = 239,429.85 × 103,632.70
  4. Step 4: Simplify right side
    159,619.90x = 24,812,761,816.10
  5. Step 5: Solve for x
    x = 24,812,761,816.10/159,619.90
  6. Step 6: Final answer
    x = 155,449.05

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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.