Home / 80,293.28-119,867.06-74,956.96

Finding the Fourth Proportional to 80,293.28, 119,867.06 and 74,956.96

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Solution

The fourth proportional to 80,293.28, 119,867.06 and 74,956.96 is: 111,900.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,293.28 : 119,867.06 = 74,956.96 : x
  2. Step 2: Convert to fraction form
    80,293.28/119,867.06 = 74,956.96/x
  3. Step 3: Cross multiply
    80,293.28x = 119,867.06 × 74,956.96
  4. Step 4: Simplify right side
    80,293.28x = 8,984,870,421.74
  5. Step 5: Solve for x
    x = 8,984,870,421.74/80,293.28
  6. Step 6: Final answer
    x = 111,900.65

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.