Home / 142,091.92-196,016.08-99,161.44

Finding the Fourth Proportional to 142,091.92, 196,016.08 and 99,161.44

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Solution

The fourth proportional to 142,091.92, 196,016.08 and 99,161.44 is: 136,793.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,091.92 : 196,016.08 = 99,161.44 : x
  2. Step 2: Convert to fraction form
    142,091.92/196,016.08 = 99,161.44/x
  3. Step 3: Cross multiply
    142,091.92x = 196,016.08 × 99,161.44
  4. Step 4: Simplify right side
    142,091.92x = 19,437,236,755.96
  5. Step 5: Solve for x
    x = 19,437,236,755.96/142,091.92
  6. Step 6: Final answer
    x = 136,793.40

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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.