Home / 142,948.96-197,204.88-89,247.22

Finding the Fourth Proportional to 142,948.96, 197,204.88 and 89,247.22

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Solution

The fourth proportional to 142,948.96, 197,204.88 and 89,247.22 is: 123,120.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,948.96 : 197,204.88 = 89,247.22 : x
  2. Step 2: Convert to fraction form
    142,948.96/197,204.88 = 89,247.22/x
  3. Step 3: Cross multiply
    142,948.96x = 197,204.88 × 89,247.22
  4. Step 4: Simplify right side
    142,948.96x = 17,599,987,310.43
  5. Step 5: Solve for x
    x = 17,599,987,310.43/142,948.96
  6. Step 6: Final answer
    x = 123,120.78

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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.