Home / 131,578.20-197,367.06-38,083.80

Finding the Fourth Proportional to 131,578.20, 197,367.06 and 38,083.80

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Solution

The fourth proportional to 131,578.20, 197,367.06 and 38,083.80 is: 57,125.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,578.20 : 197,367.06 = 38,083.80 : x
  2. Step 2: Convert to fraction form
    131,578.20/197,367.06 = 38,083.80/x
  3. Step 3: Cross multiply
    131,578.20x = 197,367.06 × 38,083.80
  4. Step 4: Simplify right side
    131,578.20x = 7,516,487,639.63
  5. Step 5: Solve for x
    x = 7,516,487,639.63/131,578.20
  6. Step 6: Final answer
    x = 57,125.63

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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.