Home / 90,892.17-136,126.62-87,739.25

Finding the Fourth Proportional to 90,892.17, 136,126.62 and 87,739.25

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Solution

The fourth proportional to 90,892.17, 136,126.62 and 87,739.25 is: 131,404.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,892.17 : 136,126.62 = 87,739.25 : x
  2. Step 2: Convert to fraction form
    90,892.17/136,126.62 = 87,739.25/x
  3. Step 3: Cross multiply
    90,892.17x = 136,126.62 × 87,739.25
  4. Step 4: Simplify right side
    90,892.17x = 11,943,646,863.20
  5. Step 5: Solve for x
    x = 11,943,646,863.20/90,892.17
  6. Step 6: Final answer
    x = 131,404.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.