Home / 135,095.87-186,439.38-77,743.93

Finding the Fourth Proportional to 135,095.87, 186,439.38 and 77,743.93

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Solution

The fourth proportional to 135,095.87, 186,439.38 and 77,743.93 is: 107,290.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,095.87 : 186,439.38 = 77,743.93 : x
  2. Step 2: Convert to fraction form
    135,095.87/186,439.38 = 77,743.93/x
  3. Step 3: Cross multiply
    135,095.87x = 186,439.38 × 77,743.93
  4. Step 4: Simplify right side
    135,095.87x = 14,494,530,107.96
  5. Step 5: Solve for x
    x = 14,494,530,107.96/135,095.87
  6. Step 6: Final answer
    x = 107,290.70

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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.