Home / 129,217.40-194,258.10-112,110.20

Finding the Fourth Proportional to 129,217.40, 194,258.10 and 112,110.20

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Solution

The fourth proportional to 129,217.40, 194,258.10 and 112,110.20 is: 168,540.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,217.40 : 194,258.10 = 112,110.20 : x
  2. Step 2: Convert to fraction form
    129,217.40/194,258.10 = 112,110.20/x
  3. Step 3: Cross multiply
    129,217.40x = 194,258.10 × 112,110.20
  4. Step 4: Simplify right side
    129,217.40x = 21,778,314,442.62
  5. Step 5: Solve for x
    x = 21,778,314,442.62/129,217.40
  6. Step 6: Final answer
    x = 168,540.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.