Home / 135,404.64-186,864.27-74,975.28

Finding the Fourth Proportional to 135,404.64, 186,864.27 and 74,975.28

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Solution

The fourth proportional to 135,404.64, 186,864.27 and 74,975.28 is: 103,469.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,404.64 : 186,864.27 = 74,975.28 : x
  2. Step 2: Convert to fraction form
    135,404.64/186,864.27 = 74,975.28/x
  3. Step 3: Cross multiply
    135,404.64x = 186,864.27 × 74,975.28
  4. Step 4: Simplify right side
    135,404.64x = 14,010,200,965.25
  5. Step 5: Solve for x
    x = 14,010,200,965.25/135,404.64
  6. Step 6: Final answer
    x = 103,469.13

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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.