Home / 129,723.72-194,586.12-36,230.28

Finding the Fourth Proportional to 129,723.72, 194,586.12 and 36,230.28

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Solution

The fourth proportional to 129,723.72, 194,586.12 and 36,230.28 is: 54,345.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,723.72 : 194,586.12 = 36,230.28 : x
  2. Step 2: Convert to fraction form
    129,723.72/194,586.12 = 36,230.28/x
  3. Step 3: Cross multiply
    129,723.72x = 194,586.12 × 36,230.28
  4. Step 4: Simplify right side
    129,723.72x = 7,049,909,611.71
  5. Step 5: Solve for x
    x = 7,049,909,611.71/129,723.72
  6. Step 6: Final answer
    x = 54,345.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.