Home / 140,711.28-194,181.87-76,181.19

Finding the Fourth Proportional to 140,711.28, 194,181.87 and 76,181.19

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Solution

The fourth proportional to 140,711.28, 194,181.87 and 76,181.19 is: 105,130.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,711.28 : 194,181.87 = 76,181.19 : x
  2. Step 2: Convert to fraction form
    140,711.28/194,181.87 = 76,181.19/x
  3. Step 3: Cross multiply
    140,711.28x = 194,181.87 × 76,181.19
  4. Step 4: Simplify right side
    140,711.28x = 14,793,005,933.03
  5. Step 5: Solve for x
    x = 14,793,005,933.03/140,711.28
  6. Step 6: Final answer
    x = 105,130.21

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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.