Home / 212,973.40-319,119.90-113,003.20

Finding the Fourth Proportional to 212,973.40, 319,119.90 and 113,003.20

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Solution

The fourth proportional to 212,973.40, 319,119.90 and 113,003.20 is: 169,324.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,973.40 : 319,119.90 = 113,003.20 : x
  2. Step 2: Convert to fraction form
    212,973.40/319,119.90 = 113,003.20/x
  3. Step 3: Cross multiply
    212,973.40x = 319,119.90 × 113,003.20
  4. Step 4: Simplify right side
    212,973.40x = 36,061,569,883.68
  5. Step 5: Solve for x
    x = 36,061,569,883.68/212,973.40
  6. Step 6: Final answer
    x = 169,324.29

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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.