Home / 140,772.45-194,266.91-76,241.75

Finding the Fourth Proportional to 140,772.45, 194,266.91 and 76,241.75

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Solution

The fourth proportional to 140,772.45, 194,266.91 and 76,241.75 is: 105,214.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,772.45 : 194,266.91 = 76,241.75 : x
  2. Step 2: Convert to fraction form
    140,772.45/194,266.91 = 76,241.75/x
  3. Step 3: Cross multiply
    140,772.45x = 194,266.91 × 76,241.75
  4. Step 4: Simplify right side
    140,772.45x = 14,811,249,861.76
  5. Step 5: Solve for x
    x = 14,811,249,861.76/140,772.45
  6. Step 6: Final answer
    x = 105,214.12

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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.