Home / 217,840.60-326,781.04-84,730.96

Finding the Fourth Proportional to 217,840.60, 326,781.04 and 84,730.96

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Solution

The fourth proportional to 217,840.60, 326,781.04 and 84,730.96 is: 127,104.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,840.60 : 326,781.04 = 84,730.96 : x
  2. Step 2: Convert to fraction form
    217,840.60/326,781.04 = 84,730.96/x
  3. Step 3: Cross multiply
    217,840.60x = 326,781.04 × 84,730.96
  4. Step 4: Simplify right side
    217,840.60x = 27,688,471,229.00
  5. Step 5: Solve for x
    x = 27,688,471,229.00/217,840.60
  6. Step 6: Final answer
    x = 127,104.27

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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.