Home / 210,125.46-315,145.78-76,960.24

Finding the Fourth Proportional to 210,125.46, 315,145.78 and 76,960.24

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Solution

The fourth proportional to 210,125.46, 315,145.78 and 76,960.24 is: 115,424.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,125.46 : 315,145.78 = 76,960.24 : x
  2. Step 2: Convert to fraction form
    210,125.46/315,145.78 = 76,960.24/x
  3. Step 3: Cross multiply
    210,125.46x = 315,145.78 × 76,960.24
  4. Step 4: Simplify right side
    210,125.46x = 24,253,694,863.79
  5. Step 5: Solve for x
    x = 24,253,694,863.79/210,125.46
  6. Step 6: Final answer
    x = 115,424.83

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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.