Home / 169,236.10-253,788.53-90,307.27

Finding the Fourth Proportional to 169,236.10, 253,788.53 and 90,307.27

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Solution

The fourth proportional to 169,236.10, 253,788.53 and 90,307.27 is: 135,425.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,236.10 : 253,788.53 = 90,307.27 : x
  2. Step 2: Convert to fraction form
    169,236.10/253,788.53 = 90,307.27/x
  3. Step 3: Cross multiply
    169,236.10x = 253,788.53 × 90,307.27
  4. Step 4: Simplify right side
    169,236.10x = 22,918,948,032.67
  5. Step 5: Solve for x
    x = 22,918,948,032.67/169,236.10
  6. Step 6: Final answer
    x = 135,425.89

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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.