Home / 136,634.47-203,593.36-121,728.85

Finding the Fourth Proportional to 136,634.47, 203,593.36 and 121,728.85

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Solution

The fourth proportional to 136,634.47, 203,593.36 and 121,728.85 is: 181,383.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,634.47 : 203,593.36 = 121,728.85 : x
  2. Step 2: Convert to fraction form
    136,634.47/203,593.36 = 121,728.85/x
  3. Step 3: Cross multiply
    136,634.47x = 203,593.36 × 121,728.85
  4. Step 4: Simplify right side
    136,634.47x = 24,783,185,018.95
  5. Step 5: Solve for x
    x = 24,783,185,018.95/136,634.47
  6. Step 6: Final answer
    x = 181,383.12

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.