Home / 135,095.37-186,438.69-77,743.44

Finding the Fourth Proportional to 135,095.37, 186,438.69 and 77,743.44

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Solution

The fourth proportional to 135,095.37, 186,438.69 and 77,743.44 is: 107,290.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,095.37 : 186,438.69 = 77,743.44 : x
  2. Step 2: Convert to fraction form
    135,095.37/186,438.69 = 77,743.44/x
  3. Step 3: Cross multiply
    135,095.37x = 186,438.69 × 77,743.44
  4. Step 4: Simplify right side
    135,095.37x = 14,494,385,109.69
  5. Step 5: Solve for x
    x = 14,494,385,109.69/135,095.37
  6. Step 6: Final answer
    x = 107,290.02

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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.