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Finding the Fourth Proportional to 106,310.70, 146,687.13 and 80,810.28

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Solution

The fourth proportional to 106,310.70, 146,687.13 and 80,810.28 is: 111,501.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,310.70 : 146,687.13 = 80,810.28 : x
  2. Step 2: Convert to fraction form
    106,310.70/146,687.13 = 80,810.28/x
  3. Step 3: Cross multiply
    106,310.70x = 146,687.13 × 80,810.28
  4. Step 4: Simplify right side
    106,310.70x = 11,853,828,047.70
  5. Step 5: Solve for x
    x = 11,853,828,047.70/106,310.70
  6. Step 6: Final answer
    x = 111,501.74

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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.