Home / 213,281.10-319,675.59-80,076.38

Finding the Fourth Proportional to 213,281.10, 319,675.59 and 80,076.38

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Solution

The fourth proportional to 213,281.10, 319,675.59 and 80,076.38 is: 120,022.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,281.10 : 319,675.59 = 80,076.38 : x
  2. Step 2: Convert to fraction form
    213,281.10/319,675.59 = 80,076.38/x
  3. Step 3: Cross multiply
    213,281.10x = 319,675.59 × 80,076.38
  4. Step 4: Simplify right side
    213,281.10x = 25,598,462,423.19
  5. Step 5: Solve for x
    x = 25,598,462,423.19/213,281.10
  6. Step 6: Final answer
    x = 120,022.18

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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.