Home / 212,949.81-319,621.54-107,842.59

Finding the Fourth Proportional to 212,949.81, 319,621.54 and 107,842.59

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Solution

The fourth proportional to 212,949.81, 319,621.54 and 107,842.59 is: 161,863.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,949.81 : 319,621.54 = 107,842.59 : x
  2. Step 2: Convert to fraction form
    212,949.81/319,621.54 = 107,842.59/x
  3. Step 3: Cross multiply
    212,949.81x = 319,621.54 × 107,842.59
  4. Step 4: Simplify right side
    212,949.81x = 34,468,814,693.39
  5. Step 5: Solve for x
    x = 34,468,814,693.39/212,949.81
  6. Step 6: Final answer
    x = 161,863.56

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1.5x scale

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.