Home / 151,234.72-208,691.50-87,576.64

Finding the Fourth Proportional to 151,234.72, 208,691.50 and 87,576.64

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Solution

The fourth proportional to 151,234.72, 208,691.50 and 87,576.64 is: 120,848.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,234.72 : 208,691.50 = 87,576.64 : x
  2. Step 2: Convert to fraction form
    151,234.72/208,691.50 = 87,576.64/x
  3. Step 3: Cross multiply
    151,234.72x = 208,691.50 × 87,576.64
  4. Step 4: Simplify right side
    151,234.72x = 18,276,500,366.56
  5. Step 5: Solve for x
    x = 18,276,500,366.56/151,234.72
  6. Step 6: Final answer
    x = 120,848.57

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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.