Home / 84,744.45-127,116.68-80,856.45

Finding the Fourth Proportional to 84,744.45, 127,116.68 and 80,856.45

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Solution

The fourth proportional to 84,744.45, 127,116.68 and 80,856.45 is: 121,284.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,744.45 : 127,116.68 = 80,856.45 : x
  2. Step 2: Convert to fraction form
    84,744.45/127,116.68 = 80,856.45/x
  3. Step 3: Cross multiply
    84,744.45x = 127,116.68 × 80,856.45
  4. Step 4: Simplify right side
    84,744.45x = 10,278,203,076.30
  5. Step 5: Solve for x
    x = 10,278,203,076.30/84,744.45
  6. Step 6: Final answer
    x = 121,284.68

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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.