Home / 139,376.45-192,370.11-91,634.24

Finding the Fourth Proportional to 139,376.45, 192,370.11 and 91,634.24

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Solution

The fourth proportional to 139,376.45, 192,370.11 and 91,634.24 is: 126,475.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,376.45 : 192,370.11 = 91,634.24 : x
  2. Step 2: Convert to fraction form
    139,376.45/192,370.11 = 91,634.24/x
  3. Step 3: Cross multiply
    139,376.45x = 192,370.11 × 91,634.24
  4. Step 4: Simplify right side
    139,376.45x = 17,627,688,656.95
  5. Step 5: Solve for x
    x = 17,627,688,656.95/139,376.45
  6. Step 6: Final answer
    x = 126,475.38

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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.