Home / 118,831.82-163,972.32-71,067.74

Finding the Fourth Proportional to 118,831.82, 163,972.32 and 71,067.74

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Solution

The fourth proportional to 118,831.82, 163,972.32 and 71,067.74 is: 98,064.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,831.82 : 163,972.32 = 71,067.74 : x
  2. Step 2: Convert to fraction form
    118,831.82/163,972.32 = 71,067.74/x
  3. Step 3: Cross multiply
    118,831.82x = 163,972.32 × 71,067.74
  4. Step 4: Simplify right side
    118,831.82x = 11,653,142,204.96
  5. Step 5: Solve for x
    x = 11,653,142,204.96/118,831.82
  6. Step 6: Final answer
    x = 98,064.16

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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.