Home / 139,917.22-193,085.90-76,255.06

Finding the Fourth Proportional to 139,917.22, 193,085.90 and 76,255.06

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Solution

The fourth proportional to 139,917.22, 193,085.90 and 76,255.06 is: 105,232.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,917.22 : 193,085.90 = 76,255.06 : x
  2. Step 2: Convert to fraction form
    139,917.22/193,085.90 = 76,255.06/x
  3. Step 3: Cross multiply
    139,917.22x = 193,085.90 × 76,255.06
  4. Step 4: Simplify right side
    139,917.22x = 14,723,776,889.65
  5. Step 5: Solve for x
    x = 14,723,776,889.65/139,917.22
  6. Step 6: Final answer
    x = 105,232.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.