Home / 101,983.14-140,734.61-56,658.47

Finding the Fourth Proportional to 101,983.14, 140,734.61 and 56,658.47

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Solution

The fourth proportional to 101,983.14, 140,734.61 and 56,658.47 is: 78,187.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,983.14 : 140,734.61 = 56,658.47 : x
  2. Step 2: Convert to fraction form
    101,983.14/140,734.61 = 56,658.47/x
  3. Step 3: Cross multiply
    101,983.14x = 140,734.61 × 56,658.47
  4. Step 4: Simplify right side
    101,983.14x = 7,973,806,691.68
  5. Step 5: Solve for x
    x = 7,973,806,691.68/101,983.14
  6. Step 6: Final answer
    x = 78,187.50

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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.