Home / 213,241.16-319,972.43-86,974.04

Finding the Fourth Proportional to 213,241.16, 319,972.43 and 86,974.04

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Solution

The fourth proportional to 213,241.16, 319,972.43 and 86,974.04 is: 130,506.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,241.16 : 319,972.43 = 86,974.04 : x
  2. Step 2: Convert to fraction form
    213,241.16/319,972.43 = 86,974.04/x
  3. Step 3: Cross multiply
    213,241.16x = 319,972.43 × 86,974.04
  4. Step 4: Simplify right side
    213,241.16x = 27,829,293,543.29
  5. Step 5: Solve for x
    x = 27,829,293,543.29/213,241.16
  6. Step 6: Final answer
    x = 130,506.20

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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.