Home / 125,321.24-188,031.06-55,151.33

Finding the Fourth Proportional to 125,321.24, 188,031.06 and 55,151.33

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Solution

The fourth proportional to 125,321.24, 188,031.06 and 55,151.33 is: 82,748.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,321.24 : 188,031.06 = 55,151.33 : x
  2. Step 2: Convert to fraction form
    125,321.24/188,031.06 = 55,151.33/x
  3. Step 3: Cross multiply
    125,321.24x = 188,031.06 × 55,151.33
  4. Step 4: Simplify right side
    125,321.24x = 10,370,163,040.31
  5. Step 5: Solve for x
    x = 10,370,163,040.31/125,321.24
  6. Step 6: Final answer
    x = 82,748.65

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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.