Home / 142,720.25-196,767.25-122,791.22

Finding the Fourth Proportional to 142,720.25, 196,767.25 and 122,791.22

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Solution

The fourth proportional to 142,720.25, 196,767.25 and 122,791.22 is: 169,291.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,720.25 : 196,767.25 = 122,791.22 : x
  2. Step 2: Convert to fraction form
    142,720.25/196,767.25 = 122,791.22/x
  3. Step 3: Cross multiply
    142,720.25x = 196,767.25 × 122,791.22
  4. Step 4: Simplify right side
    142,720.25x = 24,161,289,392.73
  5. Step 5: Solve for x
    x = 24,161,289,392.73/142,720.25
  6. Step 6: Final answer
    x = 169,291.25

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1.5x scale

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.