Home / 142,824.33-197,089.95-82,391.40

Finding the Fourth Proportional to 142,824.33, 197,089.95 and 82,391.40

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Solution

The fourth proportional to 142,824.33, 197,089.95 and 82,391.40 is: 113,695.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,824.33 : 197,089.95 = 82,391.40 : x
  2. Step 2: Convert to fraction form
    142,824.33/197,089.95 = 82,391.40/x
  3. Step 3: Cross multiply
    142,824.33x = 197,089.95 × 82,391.40
  4. Step 4: Simplify right side
    142,824.33x = 16,238,516,906.43
  5. Step 5: Solve for x
    x = 16,238,516,906.43/142,824.33
  6. Step 6: Final answer
    x = 113,695.73

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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.