Home / 231,870.36-319,971.96-131,268.36

Finding the Fourth Proportional to 231,870.36, 319,971.96 and 131,268.36

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Solution

The fourth proportional to 231,870.36, 319,971.96 and 131,268.36 is: 181,145.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,870.36 : 319,971.96 = 131,268.36 : x
  2. Step 2: Convert to fraction form
    231,870.36/319,971.96 = 131,268.36/x
  3. Step 3: Cross multiply
    231,870.36x = 319,971.96 × 131,268.36
  4. Step 4: Simplify right side
    231,870.36x = 42,002,194,435.19
  5. Step 5: Solve for x
    x = 42,002,194,435.19/231,870.36
  6. Step 6: Final answer
    x = 181,145.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.