Home / 129,231.36-193,846.80-40,491.66

Finding the Fourth Proportional to 129,231.36, 193,846.80 and 40,491.66

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Solution

The fourth proportional to 129,231.36, 193,846.80 and 40,491.66 is: 60,737.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,231.36 : 193,846.80 = 40,491.66 : x
  2. Step 2: Convert to fraction form
    129,231.36/193,846.80 = 40,491.66/x
  3. Step 3: Cross multiply
    129,231.36x = 193,846.80 × 40,491.66
  4. Step 4: Simplify right side
    129,231.36x = 7,849,178,717.69
  5. Step 5: Solve for x
    x = 7,849,178,717.69/129,231.36
  6. Step 6: Final answer
    x = 60,737.41

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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.