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Finding the Fourth Proportional to 84,952.14, 127,411.20 and 80,736.90

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Solution

The fourth proportional to 84,952.14, 127,411.20 and 80,736.90 is: 121,089.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,952.14 : 127,411.20 = 80,736.90 : x
  2. Step 2: Convert to fraction form
    84,952.14/127,411.20 = 80,736.90/x
  3. Step 3: Cross multiply
    84,952.14x = 127,411.20 × 80,736.90
  4. Step 4: Simplify right side
    84,952.14x = 10,286,785,313.28
  5. Step 5: Solve for x
    x = 10,286,785,313.28/84,952.14
  6. Step 6: Final answer
    x = 121,089.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.