Home / 113,435.90-169,856.57-79,974.80

Finding the Fourth Proportional to 113,435.90, 169,856.57 and 79,974.80

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Solution

The fourth proportional to 113,435.90, 169,856.57 and 79,974.80 is: 119,752.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,435.90 : 169,856.57 = 79,974.80 : x
  2. Step 2: Convert to fraction form
    113,435.90/169,856.57 = 79,974.80/x
  3. Step 3: Cross multiply
    113,435.90x = 169,856.57 × 79,974.80
  4. Step 4: Simplify right side
    113,435.90x = 13,584,244,565.09
  5. Step 5: Solve for x
    x = 13,584,244,565.09/113,435.90
  6. Step 6: Final answer
    x = 119,752.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.