Home / 139,370.01-192,410.40-91,761.75

Finding the Fourth Proportional to 139,370.01, 192,410.40 and 91,761.75

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Solution

The fourth proportional to 139,370.01, 192,410.40 and 91,761.75 is: 126,683.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,370.01 : 192,410.40 = 91,761.75 : x
  2. Step 2: Convert to fraction form
    139,370.01/192,410.40 = 91,761.75/x
  3. Step 3: Cross multiply
    139,370.01x = 192,410.40 × 91,761.75
  4. Step 4: Simplify right side
    139,370.01x = 17,655,915,022.20
  5. Step 5: Solve for x
    x = 17,655,915,022.20/139,370.01
  6. Step 6: Final answer
    x = 126,683.75

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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.