Home / 123,952.20-185,709.60-77,150.40

Finding the Fourth Proportional to 123,952.20, 185,709.60 and 77,150.40

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Solution

The fourth proportional to 123,952.20, 185,709.60 and 77,150.40 is: 115,589.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,952.20 : 185,709.60 = 77,150.40 : x
  2. Step 2: Convert to fraction form
    123,952.20/185,709.60 = 77,150.40/x
  3. Step 3: Cross multiply
    123,952.20x = 185,709.60 × 77,150.40
  4. Step 4: Simplify right side
    123,952.20x = 14,327,569,923.84
  5. Step 5: Solve for x
    x = 14,327,569,923.84/123,952.20
  6. Step 6: Final answer
    x = 115,589.48

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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.