Home / 159,614.28-220,271.04-87,997.32

Finding the Fourth Proportional to 159,614.28, 220,271.04 and 87,997.32

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Solution

The fourth proportional to 159,614.28, 220,271.04 and 87,997.32 is: 121,438.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,614.28 : 220,271.04 = 87,997.32 : x
  2. Step 2: Convert to fraction form
    159,614.28/220,271.04 = 87,997.32/x
  3. Step 3: Cross multiply
    159,614.28x = 220,271.04 × 87,997.32
  4. Step 4: Simplify right side
    159,614.28x = 19,383,261,193.61
  5. Step 5: Solve for x
    x = 19,383,261,193.61/159,614.28
  6. Step 6: Final answer
    x = 121,438.14

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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.