Home / 131,358.85-197,065.97-42,605.45

Finding the Fourth Proportional to 131,358.85, 197,065.97 and 42,605.45

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Solution

The fourth proportional to 131,358.85, 197,065.97 and 42,605.45 is: 63,917.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,358.85 : 197,065.97 = 42,605.45 : x
  2. Step 2: Convert to fraction form
    131,358.85/197,065.97 = 42,605.45/x
  3. Step 3: Cross multiply
    131,358.85x = 197,065.97 × 42,605.45
  4. Step 4: Simplify right side
    131,358.85x = 8,396,084,331.54
  5. Step 5: Solve for x
    x = 8,396,084,331.54/131,358.85
  6. Step 6: Final answer
    x = 63,917.16

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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.