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Finding the Fourth Proportional to 127,444.85, 175,830.10 and 79,029.39

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Solution

The fourth proportional to 127,444.85, 175,830.10 and 79,029.39 is: 109,033.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,444.85 : 175,830.10 = 79,029.39 : x
  2. Step 2: Convert to fraction form
    127,444.85/175,830.10 = 79,029.39/x
  3. Step 3: Cross multiply
    127,444.85x = 175,830.10 × 79,029.39
  4. Step 4: Simplify right side
    127,444.85x = 13,895,745,546.64
  5. Step 5: Solve for x
    x = 13,895,745,546.64/127,444.85
  6. Step 6: Final answer
    x = 109,033.40

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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.