Home / 264,212.25-396,235.13-86,677.89

Finding the Fourth Proportional to 264,212.25, 396,235.13 and 86,677.89

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Solution

The fourth proportional to 264,212.25, 396,235.13 and 86,677.89 is: 129,989.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,212.25 : 396,235.13 = 86,677.89 : x
  2. Step 2: Convert to fraction form
    264,212.25/396,235.13 = 86,677.89/x
  3. Step 3: Cross multiply
    264,212.25x = 396,235.13 × 86,677.89
  4. Step 4: Simplify right side
    264,212.25x = 34,344,824,578.89
  5. Step 5: Solve for x
    x = 34,344,824,578.89/264,212.25
  6. Step 6: Final answer
    x = 129,989.52

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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.