Home / 143,096.08-197,481.54-79,434.94

Finding the Fourth Proportional to 143,096.08, 197,481.54 and 79,434.94

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Solution

The fourth proportional to 143,096.08, 197,481.54 and 79,434.94 is: 109,625.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,096.08 : 197,481.54 = 79,434.94 : x
  2. Step 2: Convert to fraction form
    143,096.08/197,481.54 = 79,434.94/x
  3. Step 3: Cross multiply
    143,096.08x = 197,481.54 × 79,434.94
  4. Step 4: Simplify right side
    143,096.08x = 15,686,934,281.01
  5. Step 5: Solve for x
    x = 15,686,934,281.01/143,096.08
  6. Step 6: Final answer
    x = 109,625.19

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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.