Home / 136,049.39-187,671.53-81,587.05

Finding the Fourth Proportional to 136,049.39, 187,671.53 and 81,587.05

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Solution

The fourth proportional to 136,049.39, 187,671.53 and 81,587.05 is: 112,544.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,049.39 : 187,671.53 = 81,587.05 : x
  2. Step 2: Convert to fraction form
    136,049.39/187,671.53 = 81,587.05/x
  3. Step 3: Cross multiply
    136,049.39x = 187,671.53 × 81,587.05
  4. Step 4: Simplify right side
    136,049.39x = 15,311,566,236.48
  5. Step 5: Solve for x
    x = 15,311,566,236.48/136,049.39
  6. Step 6: Final answer
    x = 112,544.18

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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.