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Finding the Fourth Proportional to 161,342.56, 241,626.25 and 90,090.10

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Solution

The fourth proportional to 161,342.56, 241,626.25 and 90,090.10 is: 134,918.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,342.56 : 241,626.25 = 90,090.10 : x
  2. Step 2: Convert to fraction form
    161,342.56/241,626.25 = 90,090.10/x
  3. Step 3: Cross multiply
    161,342.56x = 241,626.25 × 90,090.10
  4. Step 4: Simplify right side
    161,342.56x = 21,768,133,025.13
  5. Step 5: Solve for x
    x = 21,768,133,025.13/161,342.56
  6. Step 6: Final answer
    x = 134,918.73

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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.