Home / 212,934.90-319,062.15-112,964.70

Finding the Fourth Proportional to 212,934.90, 319,062.15 and 112,964.70

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Solution

The fourth proportional to 212,934.90, 319,062.15 and 112,964.70 is: 169,266.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,934.90 : 319,062.15 = 112,964.70 : x
  2. Step 2: Convert to fraction form
    212,934.90/319,062.15 = 112,964.70/x
  3. Step 3: Cross multiply
    212,934.90x = 319,062.15 × 112,964.70
  4. Step 4: Simplify right side
    212,934.90x = 36,042,760,056.11
  5. Step 5: Solve for x
    x = 36,042,760,056.11/212,934.90
  6. Step 6: Final answer
    x = 169,266.57

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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.