Home / 140,741.96-194,224.20-76,211.90

Finding the Fourth Proportional to 140,741.96, 194,224.20 and 76,211.90

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Solution

The fourth proportional to 140,741.96, 194,224.20 and 76,211.90 is: 105,172.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,741.96 : 194,224.20 = 76,211.90 : x
  2. Step 2: Convert to fraction form
    140,741.96/194,224.20 = 76,211.90/x
  3. Step 3: Cross multiply
    140,741.96x = 194,224.20 × 76,211.90
  4. Step 4: Simplify right side
    140,741.96x = 14,802,195,307.98
  5. Step 5: Solve for x
    x = 14,802,195,307.98/140,741.96
  6. Step 6: Final answer
    x = 105,172.58

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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.