Home / 168,989.47-253,393.27-67,736.70

Finding the Fourth Proportional to 168,989.47, 253,393.27 and 67,736.70

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Solution

The fourth proportional to 168,989.47, 253,393.27 and 67,736.70 is: 101,568.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,989.47 : 253,393.27 = 67,736.70 : x
  2. Step 2: Convert to fraction form
    168,989.47/253,393.27 = 67,736.70/x
  3. Step 3: Cross multiply
    168,989.47x = 253,393.27 × 67,736.70
  4. Step 4: Simplify right side
    168,989.47x = 17,164,023,742.67
  5. Step 5: Solve for x
    x = 17,164,023,742.67/168,989.47
  6. Step 6: Final answer
    x = 101,568.60

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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.