Home / 84,744.39-127,099.17-80,529.15

Finding the Fourth Proportional to 84,744.39, 127,099.17 and 80,529.15

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Solution

The fourth proportional to 84,744.39, 127,099.17 and 80,529.15 is: 120,777.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,744.39 : 127,099.17 = 80,529.15 : x
  2. Step 2: Convert to fraction form
    84,744.39/127,099.17 = 80,529.15/x
  3. Step 3: Cross multiply
    84,744.39x = 127,099.17 × 80,529.15
  4. Step 4: Simplify right side
    84,744.39x = 10,235,188,125.81
  5. Step 5: Solve for x
    x = 10,235,188,125.81/84,744.39
  6. Step 6: Final answer
    x = 120,777.18

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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.