Home / 257,127.85-385,940.52-124,101.73

Finding the Fourth Proportional to 257,127.85, 385,940.52 and 124,101.73

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Solution

The fourth proportional to 257,127.85, 385,940.52 and 124,101.73 is: 186,272.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,127.85 : 385,940.52 = 124,101.73 : x
  2. Step 2: Convert to fraction form
    257,127.85/385,940.52 = 124,101.73/x
  3. Step 3: Cross multiply
    257,127.85x = 385,940.52 × 124,101.73
  4. Step 4: Simplify right side
    257,127.85x = 47,895,886,209.10
  5. Step 5: Solve for x
    x = 47,895,886,209.10/257,127.85
  6. Step 6: Final answer
    x = 186,272.65

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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.