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Finding the Fourth Proportional to 101,574.30, 140,026.44 and 71,265.72

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Solution

The fourth proportional to 101,574.30, 140,026.44 and 71,265.72 is: 98,244.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,574.30 : 140,026.44 = 71,265.72 : x
  2. Step 2: Convert to fraction form
    101,574.30/140,026.44 = 71,265.72/x
  3. Step 3: Cross multiply
    101,574.30x = 140,026.44 × 71,265.72
  4. Step 4: Simplify right side
    101,574.30x = 9,979,085,065.64
  5. Step 5: Solve for x
    x = 9,979,085,065.64/101,574.30
  6. Step 6: Final answer
    x = 98,244.19

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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.