Home / 143,093.14-197,469.30-89,409.28

Finding the Fourth Proportional to 143,093.14, 197,469.30 and 89,409.28

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Solution

The fourth proportional to 143,093.14, 197,469.30 and 89,409.28 is: 123,385.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,093.14 : 197,469.30 = 89,409.28 : x
  2. Step 2: Convert to fraction form
    143,093.14/197,469.30 = 89,409.28/x
  3. Step 3: Cross multiply
    143,093.14x = 197,469.30 × 89,409.28
  4. Step 4: Simplify right side
    143,093.14x = 17,655,587,935.10
  5. Step 5: Solve for x
    x = 17,655,587,935.10/143,093.14
  6. Step 6: Final answer
    x = 123,385.29

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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.