Home / 159,724.15-220,490.18-103,163.11

Finding the Fourth Proportional to 159,724.15, 220,490.18 and 103,163.11

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Solution

The fourth proportional to 159,724.15, 220,490.18 and 103,163.11 is: 142,410.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,724.15 : 220,490.18 = 103,163.11 : x
  2. Step 2: Convert to fraction form
    159,724.15/220,490.18 = 103,163.11/x
  3. Step 3: Cross multiply
    159,724.15x = 220,490.18 × 103,163.11
  4. Step 4: Simplify right side
    159,724.15x = 22,746,452,693.26
  5. Step 5: Solve for x
    x = 22,746,452,693.26/159,724.15
  6. Step 6: Final answer
    x = 142,410.85

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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.