Home / 159,086.30-219,539.12-87,471.14

Finding the Fourth Proportional to 159,086.30, 219,539.12 and 87,471.14

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Solution

The fourth proportional to 159,086.30, 219,539.12 and 87,471.14 is: 120,710.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,086.30 : 219,539.12 = 87,471.14 : x
  2. Step 2: Convert to fraction form
    159,086.30/219,539.12 = 87,471.14/x
  3. Step 3: Cross multiply
    159,086.30x = 219,539.12 × 87,471.14
  4. Step 4: Simplify right side
    159,086.30x = 19,203,335,565.95
  5. Step 5: Solve for x
    x = 19,203,335,565.95/159,086.30
  6. Step 6: Final answer
    x = 120,710.18

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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.