Home / 129,709.60-194,565.12-36,216.16

Finding the Fourth Proportional to 129,709.60, 194,565.12 and 36,216.16

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Solution

The fourth proportional to 129,709.60, 194,565.12 and 36,216.16 is: 54,324.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,709.60 : 194,565.12 = 36,216.16 : x
  2. Step 2: Convert to fraction form
    129,709.60/194,565.12 = 36,216.16/x
  3. Step 3: Cross multiply
    129,709.60x = 194,565.12 × 36,216.16
  4. Step 4: Simplify right side
    129,709.60x = 7,046,401,516.34
  5. Step 5: Solve for x
    x = 7,046,401,516.34/129,709.60
  6. Step 6: Final answer
    x = 54,324.44

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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.