Home / 113,540.36-156,685.74-65,821.37

Finding the Fourth Proportional to 113,540.36, 156,685.74 and 65,821.37

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Solution

The fourth proportional to 113,540.36, 156,685.74 and 65,821.37 is: 90,833.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,540.36 : 156,685.74 = 65,821.37 : x
  2. Step 2: Convert to fraction form
    113,540.36/156,685.74 = 65,821.37/x
  3. Step 3: Cross multiply
    113,540.36x = 156,685.74 × 65,821.37
  4. Step 4: Simplify right side
    113,540.36x = 10,313,270,066.26
  5. Step 5: Solve for x
    x = 10,313,270,066.26/113,540.36
  6. Step 6: Final answer
    x = 90,833.52

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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.