Home / 161,118.72-241,747.20-90,892.80

Finding the Fourth Proportional to 161,118.72, 241,747.20 and 90,892.80

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Solution

The fourth proportional to 161,118.72, 241,747.20 and 90,892.80 is: 136,378.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,118.72 : 241,747.20 = 90,892.80 : x
  2. Step 2: Convert to fraction form
    161,118.72/241,747.20 = 90,892.80/x
  3. Step 3: Cross multiply
    161,118.72x = 241,747.20 × 90,892.80
  4. Step 4: Simplify right side
    161,118.72x = 21,973,079,900.16
  5. Step 5: Solve for x
    x = 21,973,079,900.16/161,118.72
  6. Step 6: Final answer
    x = 136,378.19

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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.