Home / 113,070.05-169,405.48-68,606.51

Finding the Fourth Proportional to 113,070.05, 169,405.48 and 68,606.51

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Solution

The fourth proportional to 113,070.05, 169,405.48 and 68,606.51 is: 102,788.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,070.05 : 169,405.48 = 68,606.51 : x
  2. Step 2: Convert to fraction form
    113,070.05/169,405.48 = 68,606.51/x
  3. Step 3: Cross multiply
    113,070.05x = 169,405.48 × 68,606.51
  4. Step 4: Simplify right side
    113,070.05x = 11,622,318,757.67
  5. Step 5: Solve for x
    x = 11,622,318,757.67/113,070.05
  6. Step 6: Final answer
    x = 102,788.66

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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.