Home / 140,330.74-193,861.32-121,435.06

Finding the Fourth Proportional to 140,330.74, 193,861.32 and 121,435.06

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Solution

The fourth proportional to 140,330.74, 193,861.32 and 121,435.06 is: 167,757.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,330.74 : 193,861.32 = 121,435.06 : x
  2. Step 2: Convert to fraction form
    140,330.74/193,861.32 = 121,435.06/x
  3. Step 3: Cross multiply
    140,330.74x = 193,861.32 × 121,435.06
  4. Step 4: Simplify right side
    140,330.74x = 23,541,561,025.88
  5. Step 5: Solve for x
    x = 23,541,561,025.88/140,330.74
  6. Step 6: Final answer
    x = 167,757.69

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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.