Home / 142,708.70-196,937.52-82,279.01

Finding the Fourth Proportional to 142,708.70, 196,937.52 and 82,279.01

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Solution

The fourth proportional to 142,708.70, 196,937.52 and 82,279.01 is: 113,544.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,708.70 : 196,937.52 = 82,279.01 : x
  2. Step 2: Convert to fraction form
    142,708.70/196,937.52 = 82,279.01/x
  3. Step 3: Cross multiply
    142,708.70x = 196,937.52 × 82,279.01
  4. Step 4: Simplify right side
    142,708.70x = 16,203,824,177.46
  5. Step 5: Solve for x
    x = 16,203,824,177.46/142,708.70
  6. Step 6: Final answer
    x = 113,544.75

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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.