Home / 231,669.16-319,710.18-131,065

Finding the Fourth Proportional to 231,669.16, 319,710.18 and 131,065

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Solution

The fourth proportional to 231,669.16, 319,710.18 and 131,065 is: 180,873.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,669.16 : 319,710.18 = 131,065 : x
  2. Step 2: Convert to fraction form
    231,669.16/319,710.18 = 131,065/x
  3. Step 3: Cross multiply
    231,669.16x = 319,710.18 × 131,065
  4. Step 4: Simplify right side
    231,669.16x = 41,902,814,741.70
  5. Step 5: Solve for x
    x = 41,902,814,741.70/231,669.16
  6. Step 6: Final answer
    x = 180,873.51

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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.