Home / 112,708.09-168,793.77-65,223.06

Finding the Fourth Proportional to 112,708.09, 168,793.77 and 65,223.06

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Solution

The fourth proportional to 112,708.09, 168,793.77 and 65,223.06 is: 97,679.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,708.09 : 168,793.77 = 65,223.06 : x
  2. Step 2: Convert to fraction form
    112,708.09/168,793.77 = 65,223.06/x
  3. Step 3: Cross multiply
    112,708.09x = 168,793.77 × 65,223.06
  4. Step 4: Simplify right side
    112,708.09x = 11,009,245,799.95
  5. Step 5: Solve for x
    x = 11,009,245,799.95/112,708.09
  6. Step 6: Final answer
    x = 97,679.29

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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.