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Finding the Fourth Proportional to 159,529.50, 220,153.44 and 103,039.29

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Solution

The fourth proportional to 159,529.50, 220,153.44 and 103,039.29 is: 142,195.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,529.50 : 220,153.44 = 103,039.29 : x
  2. Step 2: Convert to fraction form
    159,529.50/220,153.44 = 103,039.29/x
  3. Step 3: Cross multiply
    159,529.50x = 220,153.44 × 103,039.29
  4. Step 4: Simplify right side
    159,529.50x = 22,684,454,535.05
  5. Step 5: Solve for x
    x = 22,684,454,535.05/159,529.50
  6. Step 6: Final answer
    x = 142,195.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.