Home / 123,616.20-185,813.10-121,283.40

Finding the Fourth Proportional to 123,616.20, 185,813.10 and 121,283.40

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Solution

The fourth proportional to 123,616.20, 185,813.10 and 121,283.40 is: 182,306.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,616.20 : 185,813.10 = 121,283.40 : x
  2. Step 2: Convert to fraction form
    123,616.20/185,813.10 = 121,283.40/x
  3. Step 3: Cross multiply
    123,616.20x = 185,813.10 × 121,283.40
  4. Step 4: Simplify right side
    123,616.20x = 22,536,044,532.54
  5. Step 5: Solve for x
    x = 22,536,044,532.54/123,616.20
  6. Step 6: Final answer
    x = 182,306.56

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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.