Home / 142,867.96-197,162.58-79,201.96

Finding the Fourth Proportional to 142,867.96, 197,162.58 and 79,201.96

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Solution

The fourth proportional to 142,867.96, 197,162.58 and 79,201.96 is: 109,301.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,867.96 : 197,162.58 = 79,201.96 : x
  2. Step 2: Convert to fraction form
    142,867.96/197,162.58 = 79,201.96/x
  3. Step 3: Cross multiply
    142,867.96x = 197,162.58 × 79,201.96
  4. Step 4: Simplify right side
    142,867.96x = 15,615,662,774.66
  5. Step 5: Solve for x
    x = 15,615,662,774.66/142,867.96
  6. Step 6: Final answer
    x = 109,301.36

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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.