Home / 135,930.96-187,584.66-75,507.21

Finding the Fourth Proportional to 135,930.96, 187,584.66 and 75,507.21

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Solution

The fourth proportional to 135,930.96, 187,584.66 and 75,507.21 is: 104,199.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,930.96 : 187,584.66 = 75,507.21 : x
  2. Step 2: Convert to fraction form
    135,930.96/187,584.66 = 75,507.21/x
  3. Step 3: Cross multiply
    135,930.96x = 187,584.66 × 75,507.21
  4. Step 4: Simplify right side
    135,930.96x = 14,163,994,315.40
  5. Step 5: Solve for x
    x = 14,163,994,315.40/135,930.96
  6. Step 6: Final answer
    x = 104,199.91

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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.