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Finding the Fourth Proportional to 101,080.84, 151,498.26 and 71,507.20

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Solution

The fourth proportional to 101,080.84, 151,498.26 and 71,507.20 is: 107,173.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,080.84 : 151,498.26 = 71,507.20 : x
  2. Step 2: Convert to fraction form
    101,080.84/151,498.26 = 71,507.20/x
  3. Step 3: Cross multiply
    101,080.84x = 151,498.26 × 71,507.20
  4. Step 4: Simplify right side
    101,080.84x = 10,833,216,377.47
  5. Step 5: Solve for x
    x = 10,833,216,377.47/101,080.84
  6. Step 6: Final answer
    x = 107,173.79

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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.