Home / 129,931.61-194,921.71-41,161.28

Finding the Fourth Proportional to 129,931.61, 194,921.71 and 41,161.28

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Solution

The fourth proportional to 129,931.61, 194,921.71 and 41,161.28 is: 61,749.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,931.61 : 194,921.71 = 41,161.28 : x
  2. Step 2: Convert to fraction form
    129,931.61/194,921.71 = 41,161.28/x
  3. Step 3: Cross multiply
    129,931.61x = 194,921.71 × 41,161.28
  4. Step 4: Simplify right side
    129,931.61x = 8,023,226,005.88
  5. Step 5: Solve for x
    x = 8,023,226,005.88/129,931.61
  6. Step 6: Final answer
    x = 61,749.61

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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.