Home / 213,226.26-319,841.02-72,986.10

Finding the Fourth Proportional to 213,226.26, 319,841.02 and 72,986.10

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Solution

The fourth proportional to 213,226.26, 319,841.02 and 72,986.10 is: 109,479.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,226.26 : 319,841.02 = 72,986.10 : x
  2. Step 2: Convert to fraction form
    213,226.26/319,841.02 = 72,986.10/x
  3. Step 3: Cross multiply
    213,226.26x = 319,841.02 × 72,986.10
  4. Step 4: Simplify right side
    213,226.26x = 23,343,948,669.82
  5. Step 5: Solve for x
    x = 23,343,948,669.82/213,226.26
  6. Step 6: Final answer
    x = 109,479.71

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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.