Home / 90,497.44-136,440.43-84,399.04

Finding the Fourth Proportional to 90,497.44, 136,440.43 and 84,399.04

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Solution

The fourth proportional to 90,497.44, 136,440.43 and 84,399.04 is: 127,246.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,497.44 : 136,440.43 = 84,399.04 : x
  2. Step 2: Convert to fraction form
    90,497.44/136,440.43 = 84,399.04/x
  3. Step 3: Cross multiply
    90,497.44x = 136,440.43 × 84,399.04
  4. Step 4: Simplify right side
    90,497.44x = 11,515,441,309.19
  5. Step 5: Solve for x
    x = 11,515,441,309.19/90,497.44
  6. Step 6: Final answer
    x = 127,246.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.