Home / 142,195.32-196,227.90-77,664.24

Finding the Fourth Proportional to 142,195.32, 196,227.90 and 77,664.24

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Solution

The fourth proportional to 142,195.32, 196,227.90 and 77,664.24 is: 107,175.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,195.32 : 196,227.90 = 77,664.24 : x
  2. Step 2: Convert to fraction form
    142,195.32/196,227.90 = 77,664.24/x
  3. Step 3: Cross multiply
    142,195.32x = 196,227.90 × 77,664.24
  4. Step 4: Simplify right side
    142,195.32x = 15,239,890,720.30
  5. Step 5: Solve for x
    x = 15,239,890,720.30/142,195.32
  6. Step 6: Final answer
    x = 107,175.75

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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.