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Finding the Fourth Proportional to 159,102.48, 219,555.52 and 87,478.24

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Solution

The fourth proportional to 159,102.48, 219,555.52 and 87,478.24 is: 120,716.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,102.48 : 219,555.52 = 87,478.24 : x
  2. Step 2: Convert to fraction form
    159,102.48/219,555.52 = 87,478.24/x
  3. Step 3: Cross multiply
    159,102.48x = 219,555.52 × 87,478.24
  4. Step 4: Simplify right side
    159,102.48x = 19,206,330,471.88
  5. Step 5: Solve for x
    x = 19,206,330,471.88/159,102.48
  6. Step 6: Final answer
    x = 120,716.73

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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.