Home / 217,864.60-326,732.10-84,668.20

Finding the Fourth Proportional to 217,864.60, 326,732.10 and 84,668.20

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Solution

The fourth proportional to 217,864.60, 326,732.10 and 84,668.20 is: 126,977.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,864.60 : 326,732.10 = 84,668.20 : x
  2. Step 2: Convert to fraction form
    217,864.60/326,732.10 = 84,668.20/x
  3. Step 3: Cross multiply
    217,864.60x = 326,732.10 × 84,668.20
  4. Step 4: Simplify right side
    217,864.60x = 27,663,818,789.22
  5. Step 5: Solve for x
    x = 27,663,818,789.22/217,864.60
  6. Step 6: Final answer
    x = 126,977.12

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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.