Home / 140,742.96-194,225.58-76,212.90

Finding the Fourth Proportional to 140,742.96, 194,225.58 and 76,212.90

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Solution

The fourth proportional to 140,742.96, 194,225.58 and 76,212.90 is: 105,173.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,742.96 : 194,225.58 = 76,212.90 : x
  2. Step 2: Convert to fraction form
    140,742.96/194,225.58 = 76,212.90/x
  3. Step 3: Cross multiply
    140,742.96x = 194,225.58 × 76,212.90
  4. Step 4: Simplify right side
    140,742.96x = 14,802,494,705.98
  5. Step 5: Solve for x
    x = 14,802,494,705.98/140,742.96
  6. Step 6: Final answer
    x = 105,173.96

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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.