Home / 217,665.83-326,520.61-80,925.47

Finding the Fourth Proportional to 217,665.83, 326,520.61 and 80,925.47

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Solution

The fourth proportional to 217,665.83, 326,520.61 and 80,925.47 is: 121,396.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,665.83 : 326,520.61 = 80,925.47 : x
  2. Step 2: Convert to fraction form
    217,665.83/326,520.61 = 80,925.47/x
  3. Step 3: Cross multiply
    217,665.83x = 326,520.61 × 80,925.47
  4. Step 4: Simplify right side
    217,665.83x = 26,423,835,282.75
  5. Step 5: Solve for x
    x = 26,423,835,282.75/217,665.83
  6. Step 6: Final answer
    x = 121,396.34

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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.