Home / 105,691.07-146,046.98-76,960.85

Finding the Fourth Proportional to 105,691.07, 146,046.98 and 76,960.85

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Solution

The fourth proportional to 105,691.07, 146,046.98 and 76,960.85 is: 106,346.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,691.07 : 146,046.98 = 76,960.85 : x
  2. Step 2: Convert to fraction form
    105,691.07/146,046.98 = 76,960.85/x
  3. Step 3: Cross multiply
    105,691.07x = 146,046.98 × 76,960.85
  4. Step 4: Simplify right side
    105,691.07x = 11,239,899,182.90
  5. Step 5: Solve for x
    x = 11,239,899,182.90/105,691.07
  6. Step 6: Final answer
    x = 106,346.72

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1.5x scale

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.