Home / 129,321.12-193,981.16-35,826.56

Finding the Fourth Proportional to 129,321.12, 193,981.16 and 35,826.56

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Solution

The fourth proportional to 129,321.12, 193,981.16 and 35,826.56 is: 53,739.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,321.12 : 193,981.16 = 35,826.56 : x
  2. Step 2: Convert to fraction form
    129,321.12/193,981.16 = 35,826.56/x
  3. Step 3: Cross multiply
    129,321.12x = 193,981.16 × 35,826.56
  4. Step 4: Simplify right side
    129,321.12x = 6,949,677,667.61
  5. Step 5: Solve for x
    x = 6,949,677,667.61/129,321.12
  6. Step 6: Final answer
    x = 53,739.70

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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.