Home / 147,691.28-203,814.60-80,624.72

Finding the Fourth Proportional to 147,691.28, 203,814.60 and 80,624.72

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Solution

The fourth proportional to 147,691.28, 203,814.60 and 80,624.72 is: 111,262.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,691.28 : 203,814.60 = 80,624.72 : x
  2. Step 2: Convert to fraction form
    147,691.28/203,814.60 = 80,624.72/x
  3. Step 3: Cross multiply
    147,691.28x = 203,814.60 × 80,624.72
  4. Step 4: Simplify right side
    147,691.28x = 16,432,495,056.91
  5. Step 5: Solve for x
    x = 16,432,495,056.91/147,691.28
  6. Step 6: Final answer
    x = 111,262.46

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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.