Home / 135,275.83-186,678.19-74,846.48

Finding the Fourth Proportional to 135,275.83, 186,678.19 and 74,846.48

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Solution

The fourth proportional to 135,275.83, 186,678.19 and 74,846.48 is: 103,286.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,275.83 : 186,678.19 = 74,846.48 : x
  2. Step 2: Convert to fraction form
    135,275.83/186,678.19 = 74,846.48/x
  3. Step 3: Cross multiply
    135,275.83x = 186,678.19 × 74,846.48
  4. Step 4: Simplify right side
    135,275.83x = 13,972,204,106.65
  5. Step 5: Solve for x
    x = 13,972,204,106.65/135,275.83
  6. Step 6: Final answer
    x = 103,286.77

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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.