Home / 98,744.32-147,772.02-80,767.16

Finding the Fourth Proportional to 98,744.32, 147,772.02 and 80,767.16

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Solution

The fourth proportional to 98,744.32, 147,772.02 and 80,767.16 is: 120,868.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,744.32 : 147,772.02 = 80,767.16 : x
  2. Step 2: Convert to fraction form
    98,744.32/147,772.02 = 80,767.16/x
  3. Step 3: Cross multiply
    98,744.32x = 147,772.02 × 80,767.16
  4. Step 4: Simplify right side
    98,744.32x = 11,935,126,382.86
  5. Step 5: Solve for x
    x = 11,935,126,382.86/98,744.32
  6. Step 6: Final answer
    x = 120,868.99

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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.