Home / 158,869.61-219,243.88-87,251.18

Finding the Fourth Proportional to 158,869.61, 219,243.88 and 87,251.18

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Solution

The fourth proportional to 158,869.61, 219,243.88 and 87,251.18 is: 120,408.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,869.61 : 219,243.88 = 87,251.18 : x
  2. Step 2: Convert to fraction form
    158,869.61/219,243.88 = 87,251.18/x
  3. Step 3: Cross multiply
    158,869.61x = 219,243.88 × 87,251.18
  4. Step 4: Simplify right side
    158,869.61x = 19,129,287,237.78
  5. Step 5: Solve for x
    x = 19,129,287,237.78/158,869.61
  6. Step 6: Final answer
    x = 120,408.73

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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.