Home / 140,633.73-194,077.74-76,971.69

Finding the Fourth Proportional to 140,633.73, 194,077.74 and 76,971.69

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Solution

The fourth proportional to 140,633.73, 194,077.74 and 76,971.69 is: 106,222.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,633.73 : 194,077.74 = 76,971.69 : x
  2. Step 2: Convert to fraction form
    140,633.73/194,077.74 = 76,971.69/x
  3. Step 3: Cross multiply
    140,633.73x = 194,077.74 × 76,971.69
  4. Step 4: Simplify right side
    140,633.73x = 14,938,491,639.18
  5. Step 5: Solve for x
    x = 14,938,491,639.18/140,633.73
  6. Step 6: Final answer
    x = 106,222.68

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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.