Home / 122,909.60-169,615.52-68,461.33

Finding the Fourth Proportional to 122,909.60, 169,615.52 and 68,461.33

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Solution

The fourth proportional to 122,909.60, 169,615.52 and 68,461.33 is: 94,476.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,909.60 : 169,615.52 = 68,461.33 : x
  2. Step 2: Convert to fraction form
    122,909.60/169,615.52 = 68,461.33/x
  3. Step 3: Cross multiply
    122,909.60x = 169,615.52 × 68,461.33
  4. Step 4: Simplify right side
    122,909.60x = 11,612,104,087.84
  5. Step 5: Solve for x
    x = 11,612,104,087.84/122,909.60
  6. Step 6: Final answer
    x = 94,476.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.