Home / 159,566.28-220,139.74-91,558.68

Finding the Fourth Proportional to 159,566.28, 220,139.74 and 91,558.68

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Solution

The fourth proportional to 159,566.28, 220,139.74 and 91,558.68 is: 126,315.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,566.28 : 220,139.74 = 91,558.68 : x
  2. Step 2: Convert to fraction form
    159,566.28/220,139.74 = 91,558.68/x
  3. Step 3: Cross multiply
    159,566.28x = 220,139.74 × 91,558.68
  4. Step 4: Simplify right side
    159,566.28x = 20,155,704,009.94
  5. Step 5: Solve for x
    x = 20,155,704,009.94/159,566.28
  6. Step 6: Final answer
    x = 126,315.56

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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.