Home / 212,643.24-319,162.50-107,537.64

Finding the Fourth Proportional to 212,643.24, 319,162.50 and 107,537.64

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Solution

The fourth proportional to 212,643.24, 319,162.50 and 107,537.64 is: 161,406.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,643.24 : 319,162.50 = 107,537.64 : x
  2. Step 2: Convert to fraction form
    212,643.24/319,162.50 = 107,537.64/x
  3. Step 3: Cross multiply
    212,643.24x = 319,162.50 × 107,537.64
  4. Step 4: Simplify right side
    212,643.24x = 34,321,982,026.50
  5. Step 5: Solve for x
    x = 34,321,982,026.50/212,643.24
  6. Step 6: Final answer
    x = 161,406.41

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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.