Home / 186,643.20-279,964.80-110,863.65

Finding the Fourth Proportional to 186,643.20, 279,964.80 and 110,863.65

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Solution

The fourth proportional to 186,643.20, 279,964.80 and 110,863.65 is: 166,295.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,643.20 : 279,964.80 = 110,863.65 : x
  2. Step 2: Convert to fraction form
    186,643.20/279,964.80 = 110,863.65/x
  3. Step 3: Cross multiply
    186,643.20x = 279,964.80 × 110,863.65
  4. Step 4: Simplify right side
    186,643.20x = 31,037,919,599.52
  5. Step 5: Solve for x
    x = 31,037,919,599.52/186,643.20
  6. Step 6: Final answer
    x = 166,295.48

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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.