Home / 142,944.35-197,258.16-79,288.07

Finding the Fourth Proportional to 142,944.35, 197,258.16 and 79,288.07

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Solution

The fourth proportional to 142,944.35, 197,258.16 and 79,288.07 is: 109,414.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,944.35 : 197,258.16 = 79,288.07 : x
  2. Step 2: Convert to fraction form
    142,944.35/197,258.16 = 79,288.07/x
  3. Step 3: Cross multiply
    142,944.35x = 197,258.16 × 79,288.07
  4. Step 4: Simplify right side
    142,944.35x = 15,640,218,798.15
  5. Step 5: Solve for x
    x = 15,640,218,798.15/142,944.35
  6. Step 6: Final answer
    x = 109,414.74

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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.