Home / 112,016.16-154,549.35-66,671.36

Finding the Fourth Proportional to 112,016.16, 154,549.35 and 66,671.36

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Solution

The fourth proportional to 112,016.16, 154,549.35 and 66,671.36 is: 91,986.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,016.16 : 154,549.35 = 66,671.36 : x
  2. Step 2: Convert to fraction form
    112,016.16/154,549.35 = 66,671.36/x
  3. Step 3: Cross multiply
    112,016.16x = 154,549.35 × 66,671.36
  4. Step 4: Simplify right side
    112,016.16x = 10,304,014,578.87
  5. Step 5: Solve for x
    x = 10,304,014,578.87/112,016.16
  6. Step 6: Final answer
    x = 91,986.86

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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.