Home / 142,921.96-197,218.08-82,512.10

Finding the Fourth Proportional to 142,921.96, 197,218.08 and 82,512.10

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Solution

The fourth proportional to 142,921.96, 197,218.08 and 82,512.10 is: 113,858.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,921.96 : 197,218.08 = 82,512.10 : x
  2. Step 2: Convert to fraction form
    142,921.96/197,218.08 = 82,512.10/x
  3. Step 3: Cross multiply
    142,921.96x = 197,218.08 × 82,512.10
  4. Step 4: Simplify right side
    142,921.96x = 16,272,877,938.77
  5. Step 5: Solve for x
    x = 16,272,877,938.77/142,921.96
  6. Step 6: Final answer
    x = 113,858.49

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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.