Home / 142,998.82-197,335.74-79,335.25

Finding the Fourth Proportional to 142,998.82, 197,335.74 and 79,335.25

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Solution

The fourth proportional to 142,998.82, 197,335.74 and 79,335.25 is: 109,481.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,998.82 : 197,335.74 = 79,335.25 : x
  2. Step 2: Convert to fraction form
    142,998.82/197,335.74 = 79,335.25/x
  3. Step 3: Cross multiply
    142,998.82x = 197,335.74 × 79,335.25
  4. Step 4: Simplify right side
    142,998.82x = 15,655,680,071.00
  5. Step 5: Solve for x
    x = 15,655,680,071.00/142,998.82
  6. Step 6: Final answer
    x = 109,481.19

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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.