Home / 135,231.57-186,603.38-74,794.05

Finding the Fourth Proportional to 135,231.57, 186,603.38 and 74,794.05

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Solution

The fourth proportional to 135,231.57, 186,603.38 and 74,794.05 is: 103,206.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,231.57 : 186,603.38 = 74,794.05 : x
  2. Step 2: Convert to fraction form
    135,231.57/186,603.38 = 74,794.05/x
  3. Step 3: Cross multiply
    135,231.57x = 186,603.38 × 74,794.05
  4. Step 4: Simplify right side
    135,231.57x = 13,956,822,159.92
  5. Step 5: Solve for x
    x = 13,956,822,159.92/135,231.57
  6. Step 6: Final answer
    x = 103,206.83

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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.