Home / 129,162.15-193,746.86-35,667.90

Finding the Fourth Proportional to 129,162.15, 193,746.86 and 35,667.90

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Solution

The fourth proportional to 129,162.15, 193,746.86 and 35,667.90 is: 53,502.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,162.15 : 193,746.86 = 35,667.90 : x
  2. Step 2: Convert to fraction form
    129,162.15/193,746.86 = 35,667.90/x
  3. Step 3: Cross multiply
    129,162.15x = 193,746.86 × 35,667.90
  4. Step 4: Simplify right side
    129,162.15x = 6,910,543,627.79
  5. Step 5: Solve for x
    x = 6,910,543,627.79/129,162.15
  6. Step 6: Final answer
    x = 53,502.85

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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.