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Finding the Fourth Proportional to 130,367.36, 179,853.36 and 79,339.16

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Solution

The fourth proportional to 130,367.36, 179,853.36 and 79,339.16 is: 109,455.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,367.36 : 179,853.36 = 79,339.16 : x
  2. Step 2: Convert to fraction form
    130,367.36/179,853.36 = 79,339.16/x
  3. Step 3: Cross multiply
    130,367.36x = 179,853.36 × 79,339.16
  4. Step 4: Simplify right side
    130,367.36x = 14,269,414,505.58
  5. Step 5: Solve for x
    x = 14,269,414,505.58/130,367.36
  6. Step 6: Final answer
    x = 109,455.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.