Home / 128,318.97-192,478.55-34,824.72

Finding the Fourth Proportional to 128,318.97, 192,478.55 and 34,824.72

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Solution

The fourth proportional to 128,318.97, 192,478.55 and 34,824.72 is: 52,237.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,318.97 : 192,478.55 = 34,824.72 : x
  2. Step 2: Convert to fraction form
    128,318.97/192,478.55 = 34,824.72/x
  3. Step 3: Cross multiply
    128,318.97x = 192,478.55 × 34,824.72
  4. Step 4: Simplify right side
    128,318.97x = 6,703,011,609.76
  5. Step 5: Solve for x
    x = 6,703,011,609.76/128,318.97
  6. Step 6: Final answer
    x = 52,237.11

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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.