Home / 185,913.16-278,819.94-80,707.12

Finding the Fourth Proportional to 185,913.16, 278,819.94 and 80,707.12

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Solution

The fourth proportional to 185,913.16, 278,819.94 and 80,707.12 is: 121,039.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,913.16 : 278,819.94 = 80,707.12 : x
  2. Step 2: Convert to fraction form
    185,913.16/278,819.94 = 80,707.12/x
  3. Step 3: Cross multiply
    185,913.16x = 278,819.94 × 80,707.12
  4. Step 4: Simplify right side
    185,913.16x = 22,502,754,355.97
  5. Step 5: Solve for x
    x = 22,502,754,355.97/185,913.16
  6. Step 6: Final answer
    x = 121,039.06

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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.