Home / 171,935.12-236,779.88-124,112.72

Finding the Fourth Proportional to 171,935.12, 236,779.88 and 124,112.72

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Solution

The fourth proportional to 171,935.12, 236,779.88 and 124,112.72 is: 170,921.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,935.12 : 236,779.88 = 124,112.72 : x
  2. Step 2: Convert to fraction form
    171,935.12/236,779.88 = 124,112.72/x
  3. Step 3: Cross multiply
    171,935.12x = 236,779.88 × 124,112.72
  4. Step 4: Simplify right side
    171,935.12x = 29,387,394,919.46
  5. Step 5: Solve for x
    x = 29,387,394,919.46/171,935.12
  6. Step 6: Final answer
    x = 170,921.42

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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.