Home / 159,072.88-219,521.10-87,454.12

Finding the Fourth Proportional to 159,072.88, 219,521.10 and 87,454.12

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Solution

The fourth proportional to 159,072.88, 219,521.10 and 87,454.12 is: 120,686.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,072.88 : 219,521.10 = 87,454.12 : x
  2. Step 2: Convert to fraction form
    159,072.88/219,521.10 = 87,454.12/x
  3. Step 3: Cross multiply
    159,072.88x = 219,521.10 × 87,454.12
  4. Step 4: Simplify right side
    159,072.88x = 19,198,024,621.93
  5. Step 5: Solve for x
    x = 19,198,024,621.93/159,072.88
  6. Step 6: Final answer
    x = 120,686.97

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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.