Home / 217,536.61-326,625.23-121,661.66

Finding the Fourth Proportional to 217,536.61, 326,625.23 and 121,661.66

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Solution

The fourth proportional to 217,536.61, 326,625.23 and 121,661.66 is: 182,671.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,536.61 : 326,625.23 = 121,661.66 : x
  2. Step 2: Convert to fraction form
    217,536.61/326,625.23 = 121,661.66/x
  3. Step 3: Cross multiply
    217,536.61x = 326,625.23 × 121,661.66
  4. Step 4: Simplify right side
    217,536.61x = 39,737,768,971.70
  5. Step 5: Solve for x
    x = 39,737,768,971.70/217,536.61
  6. Step 6: Final answer
    x = 182,671.64

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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.