Home / 136,366.74-188,219.25-78,996.78

Finding the Fourth Proportional to 136,366.74, 188,219.25 and 78,996.78

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Solution

The fourth proportional to 136,366.74, 188,219.25 and 78,996.78 is: 109,034.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,366.74 : 188,219.25 = 78,996.78 : x
  2. Step 2: Convert to fraction form
    136,366.74/188,219.25 = 78,996.78/x
  3. Step 3: Cross multiply
    136,366.74x = 188,219.25 × 78,996.78
  4. Step 4: Simplify right side
    136,366.74x = 14,868,714,684.02
  5. Step 5: Solve for x
    x = 14,868,714,684.02/136,366.74
  6. Step 6: Final answer
    x = 109,034.76

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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.