Home / 125,931.22-188,774.32-80,825.37

Finding the Fourth Proportional to 125,931.22, 188,774.32 and 80,825.37

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Solution

The fourth proportional to 125,931.22, 188,774.32 and 80,825.37 is: 121,159.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,931.22 : 188,774.32 = 80,825.37 : x
  2. Step 2: Convert to fraction form
    125,931.22/188,774.32 = 80,825.37/x
  3. Step 3: Cross multiply
    125,931.22x = 188,774.32 × 80,825.37
  4. Step 4: Simplify right side
    125,931.22x = 15,257,754,260.33
  5. Step 5: Solve for x
    x = 15,257,754,260.33/125,931.22
  6. Step 6: Final answer
    x = 121,159.43

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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.