Home / 136,635.09-203,594.30-121,729.47

Finding the Fourth Proportional to 136,635.09, 203,594.30 and 121,729.47

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Solution

The fourth proportional to 136,635.09, 203,594.30 and 121,729.47 is: 181,384.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,635.09 : 203,594.30 = 121,729.47 : x
  2. Step 2: Convert to fraction form
    136,635.09/203,594.30 = 121,729.47/x
  3. Step 3: Cross multiply
    136,635.09x = 203,594.30 × 121,729.47
  4. Step 4: Simplify right side
    136,635.09x = 24,783,425,625.37
  5. Step 5: Solve for x
    x = 24,783,425,625.37/136,635.09
  6. Step 6: Final answer
    x = 181,384.05

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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.