Home / 143,129.97-214,694.96-54,362.48

Finding the Fourth Proportional to 143,129.97, 214,694.96 and 54,362.48

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Solution

The fourth proportional to 143,129.97, 214,694.96 and 54,362.48 is: 81,543.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,129.97 : 214,694.96 = 54,362.48 : x
  2. Step 2: Convert to fraction form
    143,129.97/214,694.96 = 54,362.48/x
  3. Step 3: Cross multiply
    143,129.97x = 214,694.96 × 54,362.48
  4. Step 4: Simplify right side
    143,129.97x = 11,671,349,123.81
  5. Step 5: Solve for x
    x = 11,671,349,123.81/143,129.97
  6. Step 6: Final answer
    x = 81,543.71

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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.