Home / 135,452.90-186,926.37-81,727.58

Finding the Fourth Proportional to 135,452.90, 186,926.37 and 81,727.58

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Solution

The fourth proportional to 135,452.90, 186,926.37 and 81,727.58 is: 112,784.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,452.90 : 186,926.37 = 81,727.58 : x
  2. Step 2: Convert to fraction form
    135,452.90/186,926.37 = 81,727.58/x
  3. Step 3: Cross multiply
    135,452.90x = 186,926.37 × 81,727.58
  4. Step 4: Simplify right side
    135,452.90x = 15,277,038,515.01
  5. Step 5: Solve for x
    x = 15,277,038,515.01/135,452.90
  6. Step 6: Final answer
    x = 112,784.88

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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.