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Finding the Fourth Proportional to 169,242.35, 253,797.91 and 90,313.52

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Solution

The fourth proportional to 169,242.35, 253,797.91 and 90,313.52 is: 135,435.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,242.35 : 253,797.91 = 90,313.52 : x
  2. Step 2: Convert to fraction form
    169,242.35/253,797.91 = 90,313.52/x
  3. Step 3: Cross multiply
    169,242.35x = 253,797.91 × 90,313.52
  4. Step 4: Simplify right side
    169,242.35x = 22,921,381,125.97
  5. Step 5: Solve for x
    x = 22,921,381,125.97/169,242.35
  6. Step 6: Final answer
    x = 135,435.26

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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.