Home / 131,661.58-197,512.85-42,894.43

Finding the Fourth Proportional to 131,661.58, 197,512.85 and 42,894.43

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Solution

The fourth proportional to 131,661.58, 197,512.85 and 42,894.43 is: 64,348.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,661.58 : 197,512.85 = 42,894.43 : x
  2. Step 2: Convert to fraction form
    131,661.58/197,512.85 = 42,894.43/x
  3. Step 3: Cross multiply
    131,661.58x = 197,512.85 × 42,894.43
  4. Step 4: Simplify right side
    131,661.58x = 8,472,201,118.43
  5. Step 5: Solve for x
    x = 8,472,201,118.43/131,661.58
  6. Step 6: Final answer
    x = 64,348.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.