Home / 257,649.20-386,500.30-89,169.22

Finding the Fourth Proportional to 257,649.20, 386,500.30 and 89,169.22

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Solution

The fourth proportional to 257,649.20, 386,500.30 and 89,169.22 is: 133,763.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,649.20 : 386,500.30 = 89,169.22 : x
  2. Step 2: Convert to fraction form
    257,649.20/386,500.30 = 89,169.22/x
  3. Step 3: Cross multiply
    257,649.20x = 386,500.30 × 89,169.22
  4. Step 4: Simplify right side
    257,649.20x = 34,463,929,091.59
  5. Step 5: Solve for x
    x = 34,463,929,091.59/257,649.20
  6. Step 6: Final answer
    x = 133,763.00

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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.