Home / 142,450.21-196,388.92-91,374.27

Finding the Fourth Proportional to 142,450.21, 196,388.92 and 91,374.27

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Solution

The fourth proportional to 142,450.21, 196,388.92 and 91,374.27 is: 125,973.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,450.21 : 196,388.92 = 91,374.27 : x
  2. Step 2: Convert to fraction form
    142,450.21/196,388.92 = 91,374.27/x
  3. Step 3: Cross multiply
    142,450.21x = 196,388.92 × 91,374.27
  4. Step 4: Simplify right side
    142,450.21x = 17,944,894,201.09
  5. Step 5: Solve for x
    x = 17,944,894,201.09/142,450.21
  6. Step 6: Final answer
    x = 125,973.10

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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.