Home / 127,493.76-191,242.26-71,325.12

Finding the Fourth Proportional to 127,493.76, 191,242.26 and 71,325.12

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Solution

The fourth proportional to 127,493.76, 191,242.26 and 71,325.12 is: 106,988.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,493.76 : 191,242.26 = 71,325.12 : x
  2. Step 2: Convert to fraction form
    127,493.76/191,242.26 = 71,325.12/x
  3. Step 3: Cross multiply
    127,493.76x = 191,242.26 × 71,325.12
  4. Step 4: Simplify right side
    127,493.76x = 13,640,377,143.57
  5. Step 5: Solve for x
    x = 13,640,377,143.57/127,493.76
  6. Step 6: Final answer
    x = 106,988.59

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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.