Home / 154,481.44-213,134.82-86,488.40

Finding the Fourth Proportional to 154,481.44, 213,134.82 and 86,488.40

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Solution

The fourth proportional to 154,481.44, 213,134.82 and 86,488.40 is: 119,326.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,481.44 : 213,134.82 = 86,488.40 : x
  2. Step 2: Convert to fraction form
    154,481.44/213,134.82 = 86,488.40/x
  3. Step 3: Cross multiply
    154,481.44x = 213,134.82 × 86,488.40
  4. Step 4: Simplify right side
    154,481.44x = 18,433,689,566.09
  5. Step 5: Solve for x
    x = 18,433,689,566.09/154,481.44
  6. Step 6: Final answer
    x = 119,326.24

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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.