Home / 109,644.39-151,267.56-68,791.20

Finding the Fourth Proportional to 109,644.39, 151,267.56 and 68,791.20

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Solution

The fourth proportional to 109,644.39, 151,267.56 and 68,791.20 is: 94,905.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,644.39 : 151,267.56 = 68,791.20 : x
  2. Step 2: Convert to fraction form
    109,644.39/151,267.56 = 68,791.20/x
  3. Step 3: Cross multiply
    109,644.39x = 151,267.56 × 68,791.20
  4. Step 4: Simplify right side
    109,644.39x = 10,405,876,973.47
  5. Step 5: Solve for x
    x = 10,405,876,973.47/109,644.39
  6. Step 6: Final answer
    x = 94,905.69

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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.