Home / 189,928.94-284,788.22-77,687.96

Finding the Fourth Proportional to 189,928.94, 284,788.22 and 77,687.96

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Solution

The fourth proportional to 189,928.94, 284,788.22 and 77,687.96 is: 116,488.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,928.94 : 284,788.22 = 77,687.96 : x
  2. Step 2: Convert to fraction form
    189,928.94/284,788.22 = 77,687.96/x
  3. Step 3: Cross multiply
    189,928.94x = 284,788.22 × 77,687.96
  4. Step 4: Simplify right side
    189,928.94x = 22,124,614,031.45
  5. Step 5: Solve for x
    x = 22,124,614,031.45/189,928.94
  6. Step 6: Final answer
    x = 116,488.91

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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.