Home / 129,242.30-193,863.76-39,285.84

Finding the Fourth Proportional to 129,242.30, 193,863.76 and 39,285.84

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Solution

The fourth proportional to 129,242.30, 193,863.76 and 39,285.84 is: 58,928.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,242.30 : 193,863.76 = 39,285.84 : x
  2. Step 2: Convert to fraction form
    129,242.30/193,863.76 = 39,285.84/x
  3. Step 3: Cross multiply
    129,242.30x = 193,863.76 × 39,285.84
  4. Step 4: Simplify right side
    129,242.30x = 7,616,100,657.16
  5. Step 5: Solve for x
    x = 7,616,100,657.16/129,242.30
  6. Step 6: Final answer
    x = 58,928.85

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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.