Home / 127,455.60-191,208.92-71,375.46

Finding the Fourth Proportional to 127,455.60, 191,208.92 and 71,375.46

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Solution

The fourth proportional to 127,455.60, 191,208.92 and 71,375.46 is: 107,077.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,455.60 : 191,208.92 = 71,375.46 : x
  2. Step 2: Convert to fraction form
    127,455.60/191,208.92 = 71,375.46/x
  3. Step 3: Cross multiply
    127,455.60x = 191,208.92 × 71,375.46
  4. Step 4: Simplify right side
    127,455.60x = 13,647,624,621.10
  5. Step 5: Solve for x
    x = 13,647,624,621.10/127,455.60
  6. Step 6: Final answer
    x = 107,077.48

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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.