Home / 165,780.95-248,744.93-86,876.42

Finding the Fourth Proportional to 165,780.95, 248,744.93 and 86,876.42

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Solution

The fourth proportional to 165,780.95, 248,744.93 and 86,876.42 is: 130,353.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,780.95 : 248,744.93 = 86,876.42 : x
  2. Step 2: Convert to fraction form
    165,780.95/248,744.93 = 86,876.42/x
  3. Step 3: Cross multiply
    165,780.95x = 248,744.93 × 86,876.42
  4. Step 4: Simplify right side
    165,780.95x = 21,610,067,333.44
  5. Step 5: Solve for x
    x = 21,610,067,333.44/165,780.95
  6. Step 6: Final answer
    x = 130,353.14

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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.