Home / 90,496.44-136,438.92-84,398.04

Finding the Fourth Proportional to 90,496.44, 136,438.92 and 84,398.04

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Solution

The fourth proportional to 90,496.44, 136,438.92 and 84,398.04 is: 127,244.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,496.44 : 136,438.92 = 84,398.04 : x
  2. Step 2: Convert to fraction form
    90,496.44/136,438.92 = 84,398.04/x
  3. Step 3: Cross multiply
    90,496.44x = 136,438.92 × 84,398.04
  4. Step 4: Simplify right side
    90,496.44x = 11,515,177,427.72
  5. Step 5: Solve for x
    x = 11,515,177,427.72/90,496.44
  6. Step 6: Final answer
    x = 127,244.54

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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.