Home / 212,951.36-319,357.90-70,758.46

Finding the Fourth Proportional to 212,951.36, 319,357.90 and 70,758.46

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Solution

The fourth proportional to 212,951.36, 319,357.90 and 70,758.46 is: 106,114.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,951.36 : 319,357.90 = 70,758.46 : x
  2. Step 2: Convert to fraction form
    212,951.36/319,357.90 = 70,758.46/x
  3. Step 3: Cross multiply
    212,951.36x = 319,357.90 × 70,758.46
  4. Step 4: Simplify right side
    212,951.36x = 22,597,273,481.47
  5. Step 5: Solve for x
    x = 22,597,273,481.47/212,951.36
  6. Step 6: Final answer
    x = 106,114.72

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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.