Home / 189,921.42-284,979.33-77,684.58

Finding the Fourth Proportional to 189,921.42, 284,979.33 and 77,684.58

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Solution

The fourth proportional to 189,921.42, 284,979.33 and 77,684.58 is: 116,566.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,921.42 : 284,979.33 = 77,684.58 : x
  2. Step 2: Convert to fraction form
    189,921.42/284,979.33 = 77,684.58/x
  3. Step 3: Cross multiply
    189,921.42x = 284,979.33 × 77,684.58
  4. Step 4: Simplify right side
    189,921.42x = 22,138,499,559.73
  5. Step 5: Solve for x
    x = 22,138,499,559.73/189,921.42
  6. Step 6: Final answer
    x = 116,566.63

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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.