Home / 112,121.16-154,708.02-66,793.56

Finding the Fourth Proportional to 112,121.16, 154,708.02 and 66,793.56

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Solution

The fourth proportional to 112,121.16, 154,708.02 and 66,793.56 is: 92,163.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,121.16 : 154,708.02 = 66,793.56 : x
  2. Step 2: Convert to fraction form
    112,121.16/154,708.02 = 66,793.56/x
  3. Step 3: Cross multiply
    112,121.16x = 154,708.02 × 66,793.56
  4. Step 4: Simplify right side
    112,121.16x = 10,333,499,416.35
  5. Step 5: Solve for x
    x = 10,333,499,416.35/112,121.16
  6. Step 6: Final answer
    x = 92,163.69

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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.