Home / 159,132.42-219,598.36-87,512.44

Finding the Fourth Proportional to 159,132.42, 219,598.36 and 87,512.44

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Solution

The fourth proportional to 159,132.42, 219,598.36 and 87,512.44 is: 120,764.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,132.42 : 219,598.36 = 87,512.44 : x
  2. Step 2: Convert to fraction form
    159,132.42/219,598.36 = 87,512.44/x
  3. Step 3: Cross multiply
    159,132.42x = 219,598.36 × 87,512.44
  4. Step 4: Simplify right side
    159,132.42x = 19,217,588,687.49
  5. Step 5: Solve for x
    x = 19,217,588,687.49/159,132.42
  6. Step 6: Final answer
    x = 120,764.76

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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.