Home / 257,821.10-386,403.60-124,414.10

Finding the Fourth Proportional to 257,821.10, 386,403.60 and 124,414.10

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Solution

The fourth proportional to 257,821.10, 386,403.60 and 124,414.10 is: 186,462.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,821.10 : 386,403.60 = 124,414.10 : x
  2. Step 2: Convert to fraction form
    257,821.10/386,403.60 = 124,414.10/x
  3. Step 3: Cross multiply
    257,821.10x = 386,403.60 × 124,414.10
  4. Step 4: Simplify right side
    257,821.10x = 48,074,056,130.76
  5. Step 5: Solve for x
    x = 48,074,056,130.76/257,821.10
  6. Step 6: Final answer
    x = 186,462.85

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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.