Home / 101,544.07-140,161.20-65,736.50

Finding the Fourth Proportional to 101,544.07, 140,161.20 and 65,736.50

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Solution

The fourth proportional to 101,544.07, 140,161.20 and 65,736.50 is: 90,736.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,544.07 : 140,161.20 = 65,736.50 : x
  2. Step 2: Convert to fraction form
    101,544.07/140,161.20 = 65,736.50/x
  3. Step 3: Cross multiply
    101,544.07x = 140,161.20 × 65,736.50
  4. Step 4: Simplify right side
    101,544.07x = 9,213,706,827.69
  5. Step 5: Solve for x
    x = 9,213,706,827.69/101,544.07
  6. Step 6: Final answer
    x = 90,736.04

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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.