Home / 212,950.72-319,356.97-70,757.81

Finding the Fourth Proportional to 212,950.72, 319,356.97 and 70,757.81

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Solution

The fourth proportional to 212,950.72, 319,356.97 and 70,757.81 is: 106,113.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,950.72 : 319,356.97 = 70,757.81 : x
  2. Step 2: Convert to fraction form
    212,950.72/319,356.97 = 70,757.81/x
  3. Step 3: Cross multiply
    212,950.72x = 319,356.97 × 70,757.81
  4. Step 4: Simplify right side
    212,950.72x = 22,596,998,530.16
  5. Step 5: Solve for x
    x = 22,596,998,530.16/212,950.72
  6. Step 6: Final answer
    x = 106,113.75

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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.