Home / 217,614.88-326,391.60-69,851.68

Finding the Fourth Proportional to 217,614.88, 326,391.60 and 69,851.68

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Solution

The fourth proportional to 217,614.88, 326,391.60 and 69,851.68 is: 104,767.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,614.88 : 326,391.60 = 69,851.68 : x
  2. Step 2: Convert to fraction form
    217,614.88/326,391.60 = 69,851.68/x
  3. Step 3: Cross multiply
    217,614.88x = 326,391.60 × 69,851.68
  4. Step 4: Simplify right side
    217,614.88x = 22,799,001,597.89
  5. Step 5: Solve for x
    x = 22,799,001,597.89/217,614.88
  6. Step 6: Final answer
    x = 104,767.66

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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.