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Finding the Fourth Proportional to 95,004.90, 131,020.74 and 85,309.20

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Solution

The fourth proportional to 95,004.90, 131,020.74 and 85,309.20 is: 117,649.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,004.90 : 131,020.74 = 85,309.20 : x
  2. Step 2: Convert to fraction form
    95,004.90/131,020.74 = 85,309.20/x
  3. Step 3: Cross multiply
    95,004.90x = 131,020.74 × 85,309.20
  4. Step 4: Simplify right side
    95,004.90x = 11,177,274,512.81
  5. Step 5: Solve for x
    x = 11,177,274,512.81/95,004.90
  6. Step 6: Final answer
    x = 117,649.45

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1.5x scale

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.