Home / 212,926.08-319,465.62-91,295.76

Finding the Fourth Proportional to 212,926.08, 319,465.62 and 91,295.76

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Solution

The fourth proportional to 212,926.08, 319,465.62 and 91,295.76 is: 136,976.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,926.08 : 319,465.62 = 91,295.76 : x
  2. Step 2: Convert to fraction form
    212,926.08/319,465.62 = 91,295.76/x
  3. Step 3: Cross multiply
    212,926.08x = 319,465.62 × 91,295.76
  4. Step 4: Simplify right side
    212,926.08x = 29,165,856,571.77
  5. Step 5: Solve for x
    x = 29,165,856,571.77/212,926.08
  6. Step 6: Final answer
    x = 136,976.44

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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.