Home / 136,943.10-205,414.65-77,894.10

Finding the Fourth Proportional to 136,943.10, 205,414.65 and 77,894.10

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Solution

The fourth proportional to 136,943.10, 205,414.65 and 77,894.10 is: 116,841.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,943.10 : 205,414.65 = 77,894.10 : x
  2. Step 2: Convert to fraction form
    136,943.10/205,414.65 = 77,894.10/x
  3. Step 3: Cross multiply
    136,943.10x = 205,414.65 × 77,894.10
  4. Step 4: Simplify right side
    136,943.10x = 16,000,589,288.57
  5. Step 5: Solve for x
    x = 16,000,589,288.57/136,943.10
  6. Step 6: Final answer
    x = 116,841.15

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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.