Home / 159,178.72-219,672.24-87,564.16

Finding the Fourth Proportional to 159,178.72, 219,672.24 and 87,564.16

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Solution

The fourth proportional to 159,178.72, 219,672.24 and 87,564.16 is: 120,841.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,178.72 : 219,672.24 = 87,564.16 : x
  2. Step 2: Convert to fraction form
    159,178.72/219,672.24 = 87,564.16/x
  3. Step 3: Cross multiply
    159,178.72x = 219,672.24 × 87,564.16
  4. Step 4: Simplify right side
    159,178.72x = 19,235,415,170.92
  5. Step 5: Solve for x
    x = 19,235,415,170.92/159,178.72
  6. Step 6: Final answer
    x = 120,841.62

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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.