Home / 134,719.13-185,912.42-77,362.22

Finding the Fourth Proportional to 134,719.13, 185,912.42 and 77,362.22

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Solution

The fourth proportional to 134,719.13, 185,912.42 and 77,362.22 is: 106,759.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,719.13 : 185,912.42 = 77,362.22 : x
  2. Step 2: Convert to fraction form
    134,719.13/185,912.42 = 77,362.22/x
  3. Step 3: Cross multiply
    134,719.13x = 185,912.42 × 77,362.22
  4. Step 4: Simplify right side
    134,719.13x = 14,382,597,614.74
  5. Step 5: Solve for x
    x = 14,382,597,614.74/134,719.13
  6. Step 6: Final answer
    x = 106,759.87

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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.