Home / 101,981.28-140,701.68-57,260.64

Finding the Fourth Proportional to 101,981.28, 140,701.68 and 57,260.64

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Solution

The fourth proportional to 101,981.28, 140,701.68 and 57,260.64 is: 79,001.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,981.28 : 140,701.68 = 57,260.64 : x
  2. Step 2: Convert to fraction form
    101,981.28/140,701.68 = 57,260.64/x
  3. Step 3: Cross multiply
    101,981.28x = 140,701.68 × 57,260.64
  4. Step 4: Simplify right side
    101,981.28x = 8,056,668,245.88
  5. Step 5: Solve for x
    x = 8,056,668,245.88/101,981.28
  6. Step 6: Final answer
    x = 79,001.44

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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.