Home / 131,555.47-197,345.67-36,785.65

Finding the Fourth Proportional to 131,555.47, 197,345.67 and 36,785.65

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Solution

The fourth proportional to 131,555.47, 197,345.67 and 36,785.65 is: 55,181.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,555.47 : 197,345.67 = 36,785.65 : x
  2. Step 2: Convert to fraction form
    131,555.47/197,345.67 = 36,785.65/x
  3. Step 3: Cross multiply
    131,555.47x = 197,345.67 × 36,785.65
  4. Step 4: Simplify right side
    131,555.47x = 7,259,489,393.46
  5. Step 5: Solve for x
    x = 7,259,489,393.46/131,555.47
  6. Step 6: Final answer
    x = 55,181.97

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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.