Home / 213,231.16-319,673.94-88,665.40

Finding the Fourth Proportional to 213,231.16, 319,673.94 and 88,665.40

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Solution

The fourth proportional to 213,231.16, 319,673.94 and 88,665.40 is: 132,926.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,231.16 : 319,673.94 = 88,665.40 : x
  2. Step 2: Convert to fraction form
    213,231.16/319,673.94 = 88,665.40/x
  3. Step 3: Cross multiply
    213,231.16x = 319,673.94 × 88,665.40
  4. Step 4: Simplify right side
    213,231.16x = 28,344,017,759.68
  5. Step 5: Solve for x
    x = 28,344,017,759.68/213,231.16
  6. Step 6: Final answer
    x = 132,926.25

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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.