Home / 185,659.05-278,443.92-85,723.17

Finding the Fourth Proportional to 185,659.05, 278,443.92 and 85,723.17

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Solution

The fourth proportional to 185,659.05, 278,443.92 and 85,723.17 is: 128,564.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,659.05 : 278,443.92 = 85,723.17 : x
  2. Step 2: Convert to fraction form
    185,659.05/278,443.92 = 85,723.17/x
  3. Step 3: Cross multiply
    185,659.05x = 278,443.92 × 85,723.17
  4. Step 4: Simplify right side
    185,659.05x = 23,869,095,489.63
  5. Step 5: Solve for x
    x = 23,869,095,489.63/185,659.05
  6. Step 6: Final answer
    x = 128,564.14

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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.