Home / 154,249.30-212,874.87-86,272.60

Finding the Fourth Proportional to 154,249.30, 212,874.87 and 86,272.60

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Solution

The fourth proportional to 154,249.30, 212,874.87 and 86,272.60 is: 119,062.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,249.30 : 212,874.87 = 86,272.60 : x
  2. Step 2: Convert to fraction form
    154,249.30/212,874.87 = 86,272.60/x
  3. Step 3: Cross multiply
    154,249.30x = 212,874.87 × 86,272.60
  4. Step 4: Simplify right side
    154,249.30x = 18,365,268,509.56
  5. Step 5: Solve for x
    x = 18,365,268,509.56/154,249.30
  6. Step 6: Final answer
    x = 119,062.25

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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.