Home / 106,029.20-146,279.72-78,499.43

Finding the Fourth Proportional to 106,029.20, 146,279.72 and 78,499.43

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Solution

The fourth proportional to 106,029.20, 146,279.72 and 78,499.43 is: 108,299.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,029.20 : 146,279.72 = 78,499.43 : x
  2. Step 2: Convert to fraction form
    106,029.20/146,279.72 = 78,499.43/x
  3. Step 3: Cross multiply
    106,029.20x = 146,279.72 × 78,499.43
  4. Step 4: Simplify right side
    106,029.20x = 11,482,873,516.66
  5. Step 5: Solve for x
    x = 11,482,873,516.66/106,029.20
  6. Step 6: Final answer
    x = 108,299.17

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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.