Home / 135,176.10-186,535.48-74,743.10

Finding the Fourth Proportional to 135,176.10, 186,535.48 and 74,743.10

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Solution

The fourth proportional to 135,176.10, 186,535.48 and 74,743.10 is: 103,141.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,176.10 : 186,535.48 = 74,743.10 : x
  2. Step 2: Convert to fraction form
    135,176.10/186,535.48 = 74,743.10/x
  3. Step 3: Cross multiply
    135,176.10x = 186,535.48 × 74,743.10
  4. Step 4: Simplify right side
    135,176.10x = 13,942,240,035.19
  5. Step 5: Solve for x
    x = 13,942,240,035.19/135,176.10
  6. Step 6: Final answer
    x = 103,141.31

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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.