Home / 132,863.63-183,359.09-76,278.65

Finding the Fourth Proportional to 132,863.63, 183,359.09 and 76,278.65

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Solution

The fourth proportional to 132,863.63, 183,359.09 and 76,278.65 is: 105,268.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,863.63 : 183,359.09 = 76,278.65 : x
  2. Step 2: Convert to fraction form
    132,863.63/183,359.09 = 76,278.65/x
  3. Step 3: Cross multiply
    132,863.63x = 183,359.09 × 76,278.65
  4. Step 4: Simplify right side
    132,863.63x = 13,986,383,124.33
  5. Step 5: Solve for x
    x = 13,986,383,124.33/132,863.63
  6. Step 6: Final answer
    x = 105,268.72

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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.