Home / 157,016.10-216,680.40-85,394.55

Finding the Fourth Proportional to 157,016.10, 216,680.40 and 85,394.55

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Solution

The fourth proportional to 157,016.10, 216,680.40 and 85,394.55 is: 117,843.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,016.10 : 216,680.40 = 85,394.55 : x
  2. Step 2: Convert to fraction form
    157,016.10/216,680.40 = 85,394.55/x
  3. Step 3: Cross multiply
    157,016.10x = 216,680.40 × 85,394.55
  4. Step 4: Simplify right side
    157,016.10x = 18,503,325,251.82
  5. Step 5: Solve for x
    x = 18,503,325,251.82/157,016.10
  6. Step 6: Final answer
    x = 117,843.49

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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.