Home / 136,635.54-203,595.04-121,729.92

Finding the Fourth Proportional to 136,635.54, 203,595.04 and 121,729.92

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Solution

The fourth proportional to 136,635.54, 203,595.04 and 121,729.92 is: 181,384.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,635.54 : 203,595.04 = 121,729.92 : x
  2. Step 2: Convert to fraction form
    136,635.54/203,595.04 = 121,729.92/x
  3. Step 3: Cross multiply
    136,635.54x = 203,595.04 × 121,729.92
  4. Step 4: Simplify right side
    136,635.54x = 24,783,607,931.60
  5. Step 5: Solve for x
    x = 24,783,607,931.60/136,635.54
  6. Step 6: Final answer
    x = 181,384.78

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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.