Home / 142,744.73-196,973.29-85,372.66

Finding the Fourth Proportional to 142,744.73, 196,973.29 and 85,372.66

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Solution

The fourth proportional to 142,744.73, 196,973.29 and 85,372.66 is: 117,805.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,744.73 : 196,973.29 = 85,372.66 : x
  2. Step 2: Convert to fraction form
    142,744.73/196,973.29 = 85,372.66/x
  3. Step 3: Cross multiply
    142,744.73x = 196,973.29 × 85,372.66
  4. Step 4: Simplify right side
    142,744.73x = 16,816,133,755.31
  5. Step 5: Solve for x
    x = 16,816,133,755.31/142,744.73
  6. Step 6: Final answer
    x = 117,805.64

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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.