Home / 119,222.28-178,708.86-87,585.30

Finding the Fourth Proportional to 119,222.28, 178,708.86 and 87,585.30

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Solution

The fourth proportional to 119,222.28, 178,708.86 and 87,585.30 is: 131,286.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,222.28 : 178,708.86 = 87,585.30 : x
  2. Step 2: Convert to fraction form
    119,222.28/178,708.86 = 87,585.30/x
  3. Step 3: Cross multiply
    119,222.28x = 178,708.86 × 87,585.30
  4. Step 4: Simplify right side
    119,222.28x = 15,652,269,115.76
  5. Step 5: Solve for x
    x = 15,652,269,115.76/119,222.28
  6. Step 6: Final answer
    x = 131,286.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.