Home / 129,764.55-194,527.90-45,478.77

Finding the Fourth Proportional to 129,764.55, 194,527.90 and 45,478.77

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Solution

The fourth proportional to 129,764.55, 194,527.90 and 45,478.77 is: 68,176.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,764.55 : 194,527.90 = 45,478.77 : x
  2. Step 2: Convert to fraction form
    129,764.55/194,527.90 = 45,478.77/x
  3. Step 3: Cross multiply
    129,764.55x = 194,527.90 × 45,478.77
  4. Step 4: Simplify right side
    129,764.55x = 8,846,889,077.96
  5. Step 5: Solve for x
    x = 8,846,889,077.96/129,764.55
  6. Step 6: Final answer
    x = 68,176.47

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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.