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Finding the Fourth Proportional to 135,956.05, 187,619.55 and 75,525.05

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Solution

The fourth proportional to 135,956.05, 187,619.55 and 75,525.05 is: 104,224.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,956.05 : 187,619.55 = 75,525.05 : x
  2. Step 2: Convert to fraction form
    135,956.05/187,619.55 = 75,525.05/x
  3. Step 3: Cross multiply
    135,956.05x = 187,619.55 × 75,525.05
  4. Step 4: Simplify right side
    135,956.05x = 14,169,975,894.73
  5. Step 5: Solve for x
    x = 14,169,975,894.73/135,956.05
  6. Step 6: Final answer
    x = 104,224.68

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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.