Home / 84,314.20-126,471.30-80,426.20

Finding the Fourth Proportional to 84,314.20, 126,471.30 and 80,426.20

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Solution

The fourth proportional to 84,314.20, 126,471.30 and 80,426.20 is: 120,639.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,314.20 : 126,471.30 = 80,426.20 : x
  2. Step 2: Convert to fraction form
    84,314.20/126,471.30 = 80,426.20/x
  3. Step 3: Cross multiply
    84,314.20x = 126,471.30 × 80,426.20
  4. Step 4: Simplify right side
    84,314.20x = 10,171,606,068.06
  5. Step 5: Solve for x
    x = 10,171,606,068.06/84,314.20
  6. Step 6: Final answer
    x = 120,639.30

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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.