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Finding the Fourth Proportional to 119,928.40, 179,957.40 and 49,814.80

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Solution

The fourth proportional to 119,928.40, 179,957.40 and 49,814.80 is: 74,749.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,928.40 : 179,957.40 = 49,814.80 : x
  2. Step 2: Convert to fraction form
    119,928.40/179,957.40 = 49,814.80/x
  3. Step 3: Cross multiply
    119,928.40x = 179,957.40 × 49,814.80
  4. Step 4: Simplify right side
    119,928.40x = 8,964,541,889.52
  5. Step 5: Solve for x
    x = 8,964,541,889.52/119,928.40
  6. Step 6: Final answer
    x = 74,749.12

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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.