Home / 159,729.12-220,525.20-112,174.56

Finding the Fourth Proportional to 159,729.12, 220,525.20 and 112,174.56

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Solution

The fourth proportional to 159,729.12, 220,525.20 and 112,174.56 is: 154,870.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,729.12 : 220,525.20 = 112,174.56 : x
  2. Step 2: Convert to fraction form
    159,729.12/220,525.20 = 112,174.56/x
  3. Step 3: Cross multiply
    159,729.12x = 220,525.20 × 112,174.56
  4. Step 4: Simplify right side
    159,729.12x = 24,737,317,278.91
  5. Step 5: Solve for x
    x = 24,737,317,278.91/159,729.12
  6. Step 6: Final answer
    x = 154,870.43

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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.