Home / 135,277.05-186,567.78-81,550.29

Finding the Fourth Proportional to 135,277.05, 186,567.78 and 81,550.29

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Solution

The fourth proportional to 135,277.05, 186,567.78 and 81,550.29 is: 112,470.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,277.05 : 186,567.78 = 81,550.29 : x
  2. Step 2: Convert to fraction form
    135,277.05/186,567.78 = 81,550.29/x
  3. Step 3: Cross multiply
    135,277.05x = 186,567.78 × 81,550.29
  4. Step 4: Simplify right side
    135,277.05x = 15,214,656,563.66
  5. Step 5: Solve for x
    x = 15,214,656,563.66/135,277.05
  6. Step 6: Final answer
    x = 112,470.35

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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.