Home / 119,279.60-164,621.40-76,961.24

Finding the Fourth Proportional to 119,279.60, 164,621.40 and 76,961.24

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Solution

The fourth proportional to 119,279.60, 164,621.40 and 76,961.24 is: 106,216.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,279.60 : 164,621.40 = 76,961.24 : x
  2. Step 2: Convert to fraction form
    119,279.60/164,621.40 = 76,961.24/x
  3. Step 3: Cross multiply
    119,279.60x = 164,621.40 × 76,961.24
  4. Step 4: Simplify right side
    119,279.60x = 12,669,467,074.54
  5. Step 5: Solve for x
    x = 12,669,467,074.54/119,279.60
  6. Step 6: Final answer
    x = 106,216.55

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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.