Home / 135,792.12-187,395.15-75,366.66

Finding the Fourth Proportional to 135,792.12, 187,395.15 and 75,366.66

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Solution

The fourth proportional to 135,792.12, 187,395.15 and 75,366.66 is: 104,007.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,792.12 : 187,395.15 = 75,366.66 : x
  2. Step 2: Convert to fraction form
    135,792.12/187,395.15 = 75,366.66/x
  3. Step 3: Cross multiply
    135,792.12x = 187,395.15 × 75,366.66
  4. Step 4: Simplify right side
    135,792.12x = 14,123,346,555.70
  5. Step 5: Solve for x
    x = 14,123,346,555.70/135,792.12
  6. Step 6: Final answer
    x = 104,007.11

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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.