Home / 185,514.20-278,424.90-85,827.80

Finding the Fourth Proportional to 185,514.20, 278,424.90 and 85,827.80

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Solution

The fourth proportional to 185,514.20, 278,424.90 and 85,827.80 is: 128,812.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,514.20 : 278,424.90 = 85,827.80 : x
  2. Step 2: Convert to fraction form
    185,514.20/278,424.90 = 85,827.80/x
  3. Step 3: Cross multiply
    185,514.20x = 278,424.90 × 85,827.80
  4. Step 4: Simplify right side
    185,514.20x = 23,896,596,632.22
  5. Step 5: Solve for x
    x = 23,896,596,632.22/185,514.20
  6. Step 6: Final answer
    x = 128,812.76

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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.