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Finding the Fourth Proportional to 159,900.14, 220,662.34 and 88,280.17

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Solution

The fourth proportional to 159,900.14, 220,662.34 and 88,280.17 is: 121,826.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,900.14 : 220,662.34 = 88,280.17 : x
  2. Step 2: Convert to fraction form
    159,900.14/220,662.34 = 88,280.17/x
  3. Step 3: Cross multiply
    159,900.14x = 220,662.34 × 88,280.17
  4. Step 4: Simplify right side
    159,900.14x = 19,480,107,929.28
  5. Step 5: Solve for x
    x = 19,480,107,929.28/159,900.14
  6. Step 6: Final answer
    x = 121,826.71

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1.5x scale

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.