Home / 142,258.28-196,229.66-91,253.84

Finding the Fourth Proportional to 142,258.28, 196,229.66 and 91,253.84

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Solution

The fourth proportional to 142,258.28, 196,229.66 and 91,253.84 is: 125,874.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,258.28 : 196,229.66 = 91,253.84 : x
  2. Step 2: Convert to fraction form
    142,258.28/196,229.66 = 91,253.84/x
  3. Step 3: Cross multiply
    142,258.28x = 196,229.66 × 91,253.84
  4. Step 4: Simplify right side
    142,258.28x = 17,906,709,996.89
  5. Step 5: Solve for x
    x = 17,906,709,996.89/142,258.28
  6. Step 6: Final answer
    x = 125,874.64

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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.