Home / 185,920.92-278,507.16-85,943.43

Finding the Fourth Proportional to 185,920.92, 278,507.16 and 85,943.43

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Solution

The fourth proportional to 185,920.92, 278,507.16 and 85,943.43 is: 128,742.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,920.92 : 278,507.16 = 85,943.43 : x
  2. Step 2: Convert to fraction form
    185,920.92/278,507.16 = 85,943.43/x
  3. Step 3: Cross multiply
    185,920.92x = 278,507.16 × 85,943.43
  4. Step 4: Simplify right side
    185,920.92x = 23,935,860,609.96
  5. Step 5: Solve for x
    x = 23,935,860,609.96/185,920.92
  6. Step 6: Final answer
    x = 128,742.16

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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.