Home / 213,247.08-319,851.96-86,900.58

Finding the Fourth Proportional to 213,247.08, 319,851.96 and 86,900.58

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Solution

The fourth proportional to 213,247.08, 319,851.96 and 86,900.58 is: 130,343.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,247.08 : 319,851.96 = 86,900.58 : x
  2. Step 2: Convert to fraction form
    213,247.08/319,851.96 = 86,900.58/x
  3. Step 3: Cross multiply
    213,247.08x = 319,851.96 × 86,900.58
  4. Step 4: Simplify right side
    213,247.08x = 27,795,320,838.14
  5. Step 5: Solve for x
    x = 27,795,320,838.14/213,247.08
  6. Step 6: Final answer
    x = 130,343.27

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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.