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Finding the Fourth Proportional to 119,375.40, 179,145.90 and 89,855.40

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Solution

The fourth proportional to 119,375.40, 179,145.90 and 89,855.40 is: 134,845.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,375.40 : 179,145.90 = 89,855.40 : x
  2. Step 2: Convert to fraction form
    119,375.40/179,145.90 = 89,855.40/x
  3. Step 3: Cross multiply
    119,375.40x = 179,145.90 × 89,855.40
  4. Step 4: Simplify right side
    119,375.40x = 16,097,226,502.86
  5. Step 5: Solve for x
    x = 16,097,226,502.86/119,375.40
  6. Step 6: Final answer
    x = 134,845.42

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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.