Home / 129,383.92-193,920.36-70,217.20

Finding the Fourth Proportional to 129,383.92, 193,920.36 and 70,217.20

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Solution

The fourth proportional to 129,383.92, 193,920.36 and 70,217.20 is: 105,241.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,383.92 : 193,920.36 = 70,217.20 : x
  2. Step 2: Convert to fraction form
    129,383.92/193,920.36 = 70,217.20/x
  3. Step 3: Cross multiply
    129,383.92x = 193,920.36 × 70,217.20
  4. Step 4: Simplify right side
    129,383.92x = 13,616,544,702.19
  5. Step 5: Solve for x
    x = 13,616,544,702.19/129,383.92
  6. Step 6: Final answer
    x = 105,241.40

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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.