Home / 213,230.02-319,826.46-86,883.58

Finding the Fourth Proportional to 213,230.02, 319,826.46 and 86,883.58

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Solution

The fourth proportional to 213,230.02, 319,826.46 and 86,883.58 is: 130,317.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,230.02 : 319,826.46 = 86,883.58 : x
  2. Step 2: Convert to fraction form
    213,230.02/319,826.46 = 86,883.58/x
  3. Step 3: Cross multiply
    213,230.02x = 319,826.46 × 86,883.58
  4. Step 4: Simplify right side
    213,230.02x = 27,787,667,823.53
  5. Step 5: Solve for x
    x = 27,787,667,823.53/213,230.02
  6. Step 6: Final answer
    x = 130,317.80

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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.