Home / 99,161.39-136,845.78-56,733.59

Finding the Fourth Proportional to 99,161.39, 136,845.78 and 56,733.59

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Solution

The fourth proportional to 99,161.39, 136,845.78 and 56,733.59 is: 78,294.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,161.39 : 136,845.78 = 56,733.59 : x
  2. Step 2: Convert to fraction form
    99,161.39/136,845.78 = 56,733.59/x
  3. Step 3: Cross multiply
    99,161.39x = 136,845.78 × 56,733.59
  4. Step 4: Simplify right side
    99,161.39x = 7,763,752,375.75
  5. Step 5: Solve for x
    x = 7,763,752,375.75/99,161.39
  6. Step 6: Final answer
    x = 78,294.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.