Home / 135,664.60-187,179.24-79,065.04

Finding the Fourth Proportional to 135,664.60, 187,179.24 and 79,065.04

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Solution

The fourth proportional to 135,664.60, 187,179.24 and 79,065.04 is: 109,087.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,664.60 : 187,179.24 = 79,065.04 : x
  2. Step 2: Convert to fraction form
    135,664.60/187,179.24 = 79,065.04/x
  3. Step 3: Cross multiply
    135,664.60x = 187,179.24 × 79,065.04
  4. Step 4: Simplify right side
    135,664.60x = 14,799,334,097.77
  5. Step 5: Solve for x
    x = 14,799,334,097.77/135,664.60
  6. Step 6: Final answer
    x = 109,087.66

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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.