Home / 158,976.30-219,408.03-102,551.70

Finding the Fourth Proportional to 158,976.30, 219,408.03 and 102,551.70

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Solution

The fourth proportional to 158,976.30, 219,408.03 and 102,551.70 is: 141,534.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,976.30 : 219,408.03 = 102,551.70 : x
  2. Step 2: Convert to fraction form
    158,976.30/219,408.03 = 102,551.70/x
  3. Step 3: Cross multiply
    158,976.30x = 219,408.03 × 102,551.70
  4. Step 4: Simplify right side
    158,976.30x = 22,500,666,470.15
  5. Step 5: Solve for x
    x = 22,500,666,470.15/158,976.30
  6. Step 6: Final answer
    x = 141,534.72

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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.