Home / 135,176.85-186,542.09-74,746.16

Finding the Fourth Proportional to 135,176.85, 186,542.09 and 74,746.16

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Solution

The fourth proportional to 135,176.85, 186,542.09 and 74,746.16 is: 103,148.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,176.85 : 186,542.09 = 74,746.16 : x
  2. Step 2: Convert to fraction form
    135,176.85/186,542.09 = 74,746.16/x
  3. Step 3: Cross multiply
    135,176.85x = 186,542.09 × 74,746.16
  4. Step 4: Simplify right side
    135,176.85x = 13,943,304,579.26
  5. Step 5: Solve for x
    x = 13,943,304,579.26/135,176.85
  6. Step 6: Final answer
    x = 103,148.61

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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.