Home / 92,190.68-138,395.37-77,581.52

Finding the Fourth Proportional to 92,190.68, 138,395.37 and 77,581.52

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Solution

The fourth proportional to 92,190.68, 138,395.37 and 77,581.52 is: 116,464.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,190.68 : 138,395.37 = 77,581.52 : x
  2. Step 2: Convert to fraction form
    92,190.68/138,395.37 = 77,581.52/x
  3. Step 3: Cross multiply
    92,190.68x = 138,395.37 × 77,581.52
  4. Step 4: Simplify right side
    92,190.68x = 10,736,923,165.56
  5. Step 5: Solve for x
    x = 10,736,923,165.56/92,190.68
  6. Step 6: Final answer
    x = 116,464.30

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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.