Home / 139,261.24-192,264.28-131,290.84

Finding the Fourth Proportional to 139,261.24, 192,264.28 and 131,290.84

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Solution

The fourth proportional to 139,261.24, 192,264.28 and 131,290.84 is: 181,260.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,261.24 : 192,264.28 = 131,290.84 : x
  2. Step 2: Convert to fraction form
    139,261.24/192,264.28 = 131,290.84/x
  3. Step 3: Cross multiply
    139,261.24x = 192,264.28 × 131,290.84
  4. Step 4: Simplify right side
    139,261.24x = 25,242,538,823.20
  5. Step 5: Solve for x
    x = 25,242,538,823.20/139,261.24
  6. Step 6: Final answer
    x = 181,260.33

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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.