Home / 158,946.48-219,351.38-87,331.68

Finding the Fourth Proportional to 158,946.48, 219,351.38 and 87,331.68

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Solution

The fourth proportional to 158,946.48, 219,351.38 and 87,331.68 is: 120,520.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,946.48 : 219,351.38 = 87,331.68 : x
  2. Step 2: Convert to fraction form
    158,946.48/219,351.38 = 87,331.68/x
  3. Step 3: Cross multiply
    158,946.48x = 219,351.38 × 87,331.68
  4. Step 4: Simplify right side
    158,946.48x = 19,156,324,089.06
  5. Step 5: Solve for x
    x = 19,156,324,089.06/158,946.48
  6. Step 6: Final answer
    x = 120,520.59

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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.