Home / 212,988.36-319,362.66-70,757.49

Finding the Fourth Proportional to 212,988.36, 319,362.66 and 70,757.49

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Solution

The fourth proportional to 212,988.36, 319,362.66 and 70,757.49 is: 106,096.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,988.36 : 319,362.66 = 70,757.49 : x
  2. Step 2: Convert to fraction form
    212,988.36/319,362.66 = 70,757.49/x
  3. Step 3: Cross multiply
    212,988.36x = 319,362.66 × 70,757.49
  4. Step 4: Simplify right side
    212,988.36x = 22,597,300,221.32
  5. Step 5: Solve for x
    x = 22,597,300,221.32/212,988.36
  6. Step 6: Final answer
    x = 106,096.41

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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.