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Finding the Fourth Proportional to 80,856.80, 113,432.80 and 80,856.80

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Solution

The fourth proportional to 80,856.80, 113,432.80 and 80,856.80 is: 113,432.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,856.80 : 113,432.80 = 80,856.80 : x
  2. Step 2: Convert to fraction form
    80,856.80/113,432.80 = 80,856.80/x
  3. Step 3: Cross multiply
    80,856.80x = 113,432.80 × 80,856.80
  4. Step 4: Simplify right side
    80,856.80x = 9,171,813,223.04
  5. Step 5: Solve for x
    x = 9,171,813,223.04/80,856.80
  6. Step 6: Final answer
    x = 113,432.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.