Home / 134,870.54-186,195.92-81,168.75

Finding the Fourth Proportional to 134,870.54, 186,195.92 and 81,168.75

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Solution

The fourth proportional to 134,870.54, 186,195.92 and 81,168.75 is: 112,057.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,870.54 : 186,195.92 = 81,168.75 : x
  2. Step 2: Convert to fraction form
    134,870.54/186,195.92 = 81,168.75/x
  3. Step 3: Cross multiply
    134,870.54x = 186,195.92 × 81,168.75
  4. Step 4: Simplify right side
    134,870.54x = 15,113,289,675.66
  5. Step 5: Solve for x
    x = 15,113,289,675.66/134,870.54
  6. Step 6: Final answer
    x = 112,057.76

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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.