Home / 213,280.26-319,642.84-86,773.04

Finding the Fourth Proportional to 213,280.26, 319,642.84 and 86,773.04

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Solution

The fourth proportional to 213,280.26, 319,642.84 and 86,773.04 is: 130,046.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,280.26 : 319,642.84 = 86,773.04 : x
  2. Step 2: Convert to fraction form
    213,280.26/319,642.84 = 86,773.04/x
  3. Step 3: Cross multiply
    213,280.26x = 319,642.84 × 86,773.04
  4. Step 4: Simplify right side
    213,280.26x = 27,736,380,941.03
  5. Step 5: Solve for x
    x = 27,736,380,941.03/213,280.26
  6. Step 6: Final answer
    x = 130,046.64

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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.