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Finding the Fourth Proportional to 154,380.92, 213,041.08 and 85,473.44

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Solution

The fourth proportional to 154,380.92, 213,041.08 and 85,473.44 is: 117,950.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,380.92 : 213,041.08 = 85,473.44 : x
  2. Step 2: Convert to fraction form
    154,380.92/213,041.08 = 85,473.44/x
  3. Step 3: Cross multiply
    154,380.92x = 213,041.08 × 85,473.44
  4. Step 4: Simplify right side
    154,380.92x = 18,209,354,287.83
  5. Step 5: Solve for x
    x = 18,209,354,287.83/154,380.92
  6. Step 6: Final answer
    x = 117,950.81

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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.