Home / 142,896.80-197,197.26-79,232.96

Finding the Fourth Proportional to 142,896.80, 197,197.26 and 79,232.96

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Solution

The fourth proportional to 142,896.80, 197,197.26 and 79,232.96 is: 109,341.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,896.80 : 197,197.26 = 79,232.96 : x
  2. Step 2: Convert to fraction form
    142,896.80/197,197.26 = 79,232.96/x
  3. Step 3: Cross multiply
    142,896.80x = 197,197.26 × 79,232.96
  4. Step 4: Simplify right side
    142,896.80x = 15,624,522,613.69
  5. Step 5: Solve for x
    x = 15,624,522,613.69/142,896.80
  6. Step 6: Final answer
    x = 109,341.31

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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.