Home / 135,418.01-186,874.55-74,987.35

Finding the Fourth Proportional to 135,418.01, 186,874.55 and 74,987.35

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Solution

The fourth proportional to 135,418.01, 186,874.55 and 74,987.35 is: 103,481.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,418.01 : 186,874.55 = 74,987.35 : x
  2. Step 2: Convert to fraction form
    135,418.01/186,874.55 = 74,987.35/x
  3. Step 3: Cross multiply
    135,418.01x = 186,874.55 × 74,987.35
  4. Step 4: Simplify right side
    135,418.01x = 14,013,227,777.19
  5. Step 5: Solve for x
    x = 14,013,227,777.19/135,418.01
  6. Step 6: Final answer
    x = 103,481.27

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1.5x scale

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.