Home / 159,708.18-220,396.87-91,729.56

Finding the Fourth Proportional to 159,708.18, 220,396.87 and 91,729.56

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Solution

The fourth proportional to 159,708.18, 220,396.87 and 91,729.56 is: 126,586.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,708.18 : 220,396.87 = 91,729.56 : x
  2. Step 2: Convert to fraction form
    159,708.18/220,396.87 = 91,729.56/x
  3. Step 3: Cross multiply
    159,708.18x = 220,396.87 × 91,729.56
  4. Step 4: Simplify right side
    159,708.18x = 20,216,908,851.63
  5. Step 5: Solve for x
    x = 20,216,908,851.63/159,708.18
  6. Step 6: Final answer
    x = 126,586.56

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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.