Home / 143,388.58-197,872.17-79,725.22

Finding the Fourth Proportional to 143,388.58, 197,872.17 and 79,725.22

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Solution

The fourth proportional to 143,388.58, 197,872.17 and 79,725.22 is: 110,018.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,388.58 : 197,872.17 = 79,725.22 : x
  2. Step 2: Convert to fraction form
    143,388.58/197,872.17 = 79,725.22/x
  3. Step 3: Cross multiply
    143,388.58x = 197,872.17 × 79,725.22
  4. Step 4: Simplify right side
    143,388.58x = 15,775,402,285.13
  5. Step 5: Solve for x
    x = 15,775,402,285.13/143,388.58
  6. Step 6: Final answer
    x = 110,018.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.