Home / 143,434.34-197,944.14-78,906.26

Finding the Fourth Proportional to 143,434.34, 197,944.14 and 78,906.26

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Solution

The fourth proportional to 143,434.34, 197,944.14 and 78,906.26 is: 108,893.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,434.34 : 197,944.14 = 78,906.26 : x
  2. Step 2: Convert to fraction form
    143,434.34/197,944.14 = 78,906.26/x
  3. Step 3: Cross multiply
    143,434.34x = 197,944.14 × 78,906.26
  4. Step 4: Simplify right side
    143,434.34x = 15,619,031,776.32
  5. Step 5: Solve for x
    x = 15,619,031,776.32/143,434.34
  6. Step 6: Final answer
    x = 108,893.25

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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.