Home / 159,065.17-219,514.13-87,447.00

Finding the Fourth Proportional to 159,065.17, 219,514.13 and 87,447.00

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Solution

The fourth proportional to 159,065.17, 219,514.13 and 87,447.00 is: 120,679.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,065.17 : 219,514.13 = 87,447.00 : x
  2. Step 2: Convert to fraction form
    159,065.17/219,514.13 = 87,447.00/x
  3. Step 3: Cross multiply
    159,065.17x = 219,514.13 × 87,447.00
  4. Step 4: Simplify right side
    159,065.17x = 19,195,850,591.30
  5. Step 5: Solve for x
    x = 19,195,850,591.30/159,065.17
  6. Step 6: Final answer
    x = 120,679.16

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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.