Home / 121,234.36-181,876.38-51,113.80

Finding the Fourth Proportional to 121,234.36, 181,876.38 and 51,113.80

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Solution

The fourth proportional to 121,234.36, 181,876.38 and 51,113.80 is: 76,681.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,234.36 : 181,876.38 = 51,113.80 : x
  2. Step 2: Convert to fraction form
    121,234.36/181,876.38 = 51,113.80/x
  3. Step 3: Cross multiply
    121,234.36x = 181,876.38 × 51,113.80
  4. Step 4: Simplify right side
    121,234.36x = 9,296,392,912.04
  5. Step 5: Solve for x
    x = 9,296,392,912.04/121,234.36
  6. Step 6: Final answer
    x = 76,681.17

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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.