Home / 110,321.73-152,450.64-90,171.09

Finding the Fourth Proportional to 110,321.73, 152,450.64 and 90,171.09

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Solution

The fourth proportional to 110,321.73, 152,450.64 and 90,171.09 is: 124,605.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,321.73 : 152,450.64 = 90,171.09 : x
  2. Step 2: Convert to fraction form
    110,321.73/152,450.64 = 90,171.09/x
  3. Step 3: Cross multiply
    110,321.73x = 152,450.64 × 90,171.09
  4. Step 4: Simplify right side
    110,321.73x = 13,746,640,380.00
  5. Step 5: Solve for x
    x = 13,746,640,380.00/110,321.73
  6. Step 6: Final answer
    x = 124,605.01

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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.