Home / 112,016.18-154,571.28-66,680.48

Finding the Fourth Proportional to 112,016.18, 154,571.28 and 66,680.48

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Solution

The fourth proportional to 112,016.18, 154,571.28 and 66,680.48 is: 92,012.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,016.18 : 154,571.28 = 66,680.48 : x
  2. Step 2: Convert to fraction form
    112,016.18/154,571.28 = 66,680.48/x
  3. Step 3: Cross multiply
    112,016.18x = 154,571.28 × 66,680.48
  4. Step 4: Simplify right side
    112,016.18x = 10,306,887,144.61
  5. Step 5: Solve for x
    x = 10,306,887,144.61/112,016.18
  6. Step 6: Final answer
    x = 92,012.49

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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.