Home / 142,616.71-196,831.65-82,175.77

Finding the Fourth Proportional to 142,616.71, 196,831.65 and 82,175.77

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Solution

The fourth proportional to 142,616.71, 196,831.65 and 82,175.77 is: 113,414.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,616.71 : 196,831.65 = 82,175.77 : x
  2. Step 2: Convert to fraction form
    142,616.71/196,831.65 = 82,175.77/x
  3. Step 3: Cross multiply
    142,616.71x = 196,831.65 × 82,175.77
  4. Step 4: Simplify right side
    142,616.71x = 16,174,792,399.12
  5. Step 5: Solve for x
    x = 16,174,792,399.12/142,616.71
  6. Step 6: Final answer
    x = 113,414.43

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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.