Home / 161,612.75-242,250.62-90,431.03

Finding the Fourth Proportional to 161,612.75, 242,250.62 and 90,431.03

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Solution

The fourth proportional to 161,612.75, 242,250.62 and 90,431.03 is: 135,552.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,612.75 : 242,250.62 = 90,431.03 : x
  2. Step 2: Convert to fraction form
    161,612.75/242,250.62 = 90,431.03/x
  3. Step 3: Cross multiply
    161,612.75x = 242,250.62 × 90,431.03
  4. Step 4: Simplify right side
    161,612.75x = 21,906,973,238.21
  5. Step 5: Solve for x
    x = 21,906,973,238.21/161,612.75
  6. Step 6: Final answer
    x = 135,552.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.