Home / 157,618.20-236,425-73,331.22

Finding the Fourth Proportional to 157,618.20, 236,425 and 73,331.22

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Solution

The fourth proportional to 157,618.20, 236,425 and 73,331.22 is: 109,995.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,618.20 : 236,425 = 73,331.22 : x
  2. Step 2: Convert to fraction form
    157,618.20/236,425 = 73,331.22/x
  3. Step 3: Cross multiply
    157,618.20x = 236,425 × 73,331.22
  4. Step 4: Simplify right side
    157,618.20x = 17,337,333,688.50
  5. Step 5: Solve for x
    x = 17,337,333,688.50/157,618.20
  6. Step 6: Final answer
    x = 109,995.76

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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.