Home / 158,974.11-219,384.21-87,358.74

Finding the Fourth Proportional to 158,974.11, 219,384.21 and 87,358.74

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Solution

The fourth proportional to 158,974.11, 219,384.21 and 87,358.74 is: 120,555.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,974.11 : 219,384.21 = 87,358.74 : x
  2. Step 2: Convert to fraction form
    158,974.11/219,384.21 = 87,358.74/x
  3. Step 3: Cross multiply
    158,974.11x = 219,384.21 × 87,358.74
  4. Step 4: Simplify right side
    158,974.11x = 19,165,129,517.45
  5. Step 5: Solve for x
    x = 19,165,129,517.45/158,974.11
  6. Step 6: Final answer
    x = 120,555.04

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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.