Home / 99,207.56-136,845.24-81,085.16

Finding the Fourth Proportional to 99,207.56, 136,845.24 and 81,085.16

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Solution

The fourth proportional to 99,207.56, 136,845.24 and 81,085.16 is: 111,847.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,207.56 : 136,845.24 = 81,085.16 : x
  2. Step 2: Convert to fraction form
    99,207.56/136,845.24 = 81,085.16/x
  3. Step 3: Cross multiply
    99,207.56x = 136,845.24 × 81,085.16
  4. Step 4: Simplify right side
    99,207.56x = 11,096,118,180.64
  5. Step 5: Solve for x
    x = 11,096,118,180.64/99,207.56
  6. Step 6: Final answer
    x = 111,847.51

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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.