Home / 135,269.19-186,731.27-80,840.56

Finding the Fourth Proportional to 135,269.19, 186,731.27 and 80,840.56

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Solution

The fourth proportional to 135,269.19, 186,731.27 and 80,840.56 is: 111,595.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,269.19 : 186,731.27 = 80,840.56 : x
  2. Step 2: Convert to fraction form
    135,269.19/186,731.27 = 80,840.56/x
  3. Step 3: Cross multiply
    135,269.19x = 186,731.27 × 80,840.56
  4. Step 4: Simplify right side
    135,269.19x = 15,095,460,436.31
  5. Step 5: Solve for x
    x = 15,095,460,436.31/135,269.19
  6. Step 6: Final answer
    x = 111,595.70

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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.