Home / 129,917.66-194,936.63-70,682.76

Finding the Fourth Proportional to 129,917.66, 194,936.63 and 70,682.76

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Solution

The fourth proportional to 129,917.66, 194,936.63 and 70,682.76 is: 106,056.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,917.66 : 194,936.63 = 70,682.76 : x
  2. Step 2: Convert to fraction form
    129,917.66/194,936.63 = 70,682.76/x
  3. Step 3: Cross multiply
    129,917.66x = 194,936.63 × 70,682.76
  4. Step 4: Simplify right side
    129,917.66x = 13,778,658,680.09
  5. Step 5: Solve for x
    x = 13,778,658,680.09/129,917.66
  6. Step 6: Final answer
    x = 106,056.86

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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.