Home / 206,631.63-310,067.19-86,677.92

Finding the Fourth Proportional to 206,631.63, 310,067.19 and 86,677.92

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Solution

The fourth proportional to 206,631.63, 310,067.19 and 86,677.92 is: 130,067.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,631.63 : 310,067.19 = 86,677.92 : x
  2. Step 2: Convert to fraction form
    206,631.63/310,067.19 = 86,677.92/x
  3. Step 3: Cross multiply
    206,631.63x = 310,067.19 × 86,677.92
  4. Step 4: Simplify right side
    206,631.63x = 26,875,979,089.44
  5. Step 5: Solve for x
    x = 26,875,979,089.44/206,631.63
  6. Step 6: Final answer
    x = 130,067.11

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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.