Home / 217,987.45-326,847.37-84,712.08

Finding the Fourth Proportional to 217,987.45, 326,847.37 and 84,712.08

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Solution

The fourth proportional to 217,987.45, 326,847.37 and 84,712.08 is: 127,016.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,987.45 : 326,847.37 = 84,712.08 : x
  2. Step 2: Convert to fraction form
    217,987.45/326,847.37 = 84,712.08/x
  3. Step 3: Cross multiply
    217,987.45x = 326,847.37 × 84,712.08
  4. Step 4: Simplify right side
    217,987.45x = 27,687,920,555.23
  5. Step 5: Solve for x
    x = 27,687,920,555.23/217,987.45
  6. Step 6: Final answer
    x = 127,016.12

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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.