Home / 119,279.10-164,620.72-76,960.74

Finding the Fourth Proportional to 119,279.10, 164,620.72 and 76,960.74

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Solution

The fourth proportional to 119,279.10, 164,620.72 and 76,960.74 is: 106,215.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,279.10 : 164,620.72 = 76,960.74 : x
  2. Step 2: Convert to fraction form
    119,279.10/164,620.72 = 76,960.74/x
  3. Step 3: Cross multiply
    119,279.10x = 164,620.72 × 76,960.74
  4. Step 4: Simplify right side
    119,279.10x = 12,669,332,430.53
  5. Step 5: Solve for x
    x = 12,669,332,430.53/119,279.10
  6. Step 6: Final answer
    x = 106,215.86

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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.