Home / 131,570.80-197,358-42,824.68

Finding the Fourth Proportional to 131,570.80, 197,358 and 42,824.68

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Solution

The fourth proportional to 131,570.80, 197,358 and 42,824.68 is: 64,237.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,570.80 : 197,358 = 42,824.68 : x
  2. Step 2: Convert to fraction form
    131,570.80/197,358 = 42,824.68/x
  3. Step 3: Cross multiply
    131,570.80x = 197,358 × 42,824.68
  4. Step 4: Simplify right side
    131,570.80x = 8,451,793,195.44
  5. Step 5: Solve for x
    x = 8,451,793,195.44/131,570.80
  6. Step 6: Final answer
    x = 64,237.61

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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.