Home / 135,029.44-186,356.46-81,341.56

Finding the Fourth Proportional to 135,029.44, 186,356.46 and 81,341.56

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Solution

The fourth proportional to 135,029.44, 186,356.46 and 81,341.56 is: 112,260.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,029.44 : 186,356.46 = 81,341.56 : x
  2. Step 2: Convert to fraction form
    135,029.44/186,356.46 = 81,341.56/x
  3. Step 3: Cross multiply
    135,029.44x = 186,356.46 × 81,341.56
  4. Step 4: Simplify right side
    135,029.44x = 15,158,525,172.48
  5. Step 5: Solve for x
    x = 15,158,525,172.48/135,029.44
  6. Step 6: Final answer
    x = 112,260.89

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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.