Home / 98,247.85-135,474.75-66,361.39

Finding the Fourth Proportional to 98,247.85, 135,474.75 and 66,361.39

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Solution

The fourth proportional to 98,247.85, 135,474.75 and 66,361.39 is: 91,506.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,247.85 : 135,474.75 = 66,361.39 : x
  2. Step 2: Convert to fraction form
    98,247.85/135,474.75 = 66,361.39/x
  3. Step 3: Cross multiply
    98,247.85x = 135,474.75 × 66,361.39
  4. Step 4: Simplify right side
    98,247.85x = 8,990,292,719.90
  5. Step 5: Solve for x
    x = 8,990,292,719.90/98,247.85
  6. Step 6: Final answer
    x = 91,506.25

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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.