Home / 159,820.18-220,557.16-87,227.04

Finding the Fourth Proportional to 159,820.18, 220,557.16 and 87,227.04

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Solution

The fourth proportional to 159,820.18, 220,557.16 and 87,227.04 is: 120,376.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,820.18 : 220,557.16 = 87,227.04 : x
  2. Step 2: Convert to fraction form
    159,820.18/220,557.16 = 87,227.04/x
  3. Step 3: Cross multiply
    159,820.18x = 220,557.16 × 87,227.04
  4. Step 4: Simplify right side
    159,820.18x = 19,238,548,217.61
  5. Step 5: Solve for x
    x = 19,238,548,217.61/159,820.18
  6. Step 6: Final answer
    x = 120,376.21

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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.