Home / 104,176.80-156,204.86-91,721.84

Finding the Fourth Proportional to 104,176.80, 156,204.86 and 91,721.84

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Solution

The fourth proportional to 104,176.80, 156,204.86 and 91,721.84 is: 137,529.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,176.80 : 156,204.86 = 91,721.84 : x
  2. Step 2: Convert to fraction form
    104,176.80/156,204.86 = 91,721.84/x
  3. Step 3: Cross multiply
    104,176.80x = 156,204.86 × 91,721.84
  4. Step 4: Simplify right side
    104,176.80x = 14,327,395,936.51
  5. Step 5: Solve for x
    x = 14,327,395,936.51/104,176.80
  6. Step 6: Final answer
    x = 137,529.62

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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.