Home / 142,494.74-196,512.45-122,345.18

Finding the Fourth Proportional to 142,494.74, 196,512.45 and 122,345.18

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Solution

The fourth proportional to 142,494.74, 196,512.45 and 122,345.18 is: 168,724.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,494.74 : 196,512.45 = 122,345.18 : x
  2. Step 2: Convert to fraction form
    142,494.74/196,512.45 = 122,345.18/x
  3. Step 3: Cross multiply
    142,494.74x = 196,512.45 × 122,345.18
  4. Step 4: Simplify right side
    142,494.74x = 24,042,351,067.49
  5. Step 5: Solve for x
    x = 24,042,351,067.49/142,494.74
  6. Step 6: Final answer
    x = 168,724.48

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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.