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Finding the Fourth Proportional to 126,881.51, 175,103.82 and 69,520.94

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Solution

The fourth proportional to 126,881.51, 175,103.82 and 69,520.94 is: 95,942.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,881.51 : 175,103.82 = 69,520.94 : x
  2. Step 2: Convert to fraction form
    126,881.51/175,103.82 = 69,520.94/x
  3. Step 3: Cross multiply
    126,881.51x = 175,103.82 × 69,520.94
  4. Step 4: Simplify right side
    126,881.51x = 12,173,382,163.99
  5. Step 5: Solve for x
    x = 12,173,382,163.99/126,881.51
  6. Step 6: Final answer
    x = 95,942.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.