Home / 185,607.43-278,445.77-85,701.62

Finding the Fourth Proportional to 185,607.43, 278,445.77 and 85,701.62

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Solution

The fourth proportional to 185,607.43, 278,445.77 and 85,701.62 is: 128,568.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,607.43 : 278,445.77 = 85,701.62 : x
  2. Step 2: Convert to fraction form
    185,607.43/278,445.77 = 85,701.62/x
  3. Step 3: Cross multiply
    185,607.43x = 278,445.77 × 85,701.62
  4. Step 4: Simplify right side
    185,607.43x = 23,863,253,571.15
  5. Step 5: Solve for x
    x = 23,863,253,571.15/185,607.43
  6. Step 6: Final answer
    x = 128,568.42

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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.