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Finding the Fourth Proportional to 119,426.40, 179,139.60 and 82,101.60

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Solution

The fourth proportional to 119,426.40, 179,139.60 and 82,101.60 is: 123,152.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,426.40 : 179,139.60 = 82,101.60 : x
  2. Step 2: Convert to fraction form
    119,426.40/179,139.60 = 82,101.60/x
  3. Step 3: Cross multiply
    119,426.40x = 179,139.60 × 82,101.60
  4. Step 4: Simplify right side
    119,426.40x = 14,707,647,783.36
  5. Step 5: Solve for x
    x = 14,707,647,783.36/119,426.40
  6. Step 6: Final answer
    x = 123,152.40

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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.