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Finding the Fourth Proportional to 189,873.86, 262,026.04 and 108,199.80

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Solution

The fourth proportional to 189,873.86, 262,026.04 and 108,199.80 is: 149,315.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,873.86 : 262,026.04 = 108,199.80 : x
  2. Step 2: Convert to fraction form
    189,873.86/262,026.04 = 108,199.80/x
  3. Step 3: Cross multiply
    189,873.86x = 262,026.04 × 108,199.80
  4. Step 4: Simplify right side
    189,873.86x = 28,351,165,122.79
  5. Step 5: Solve for x
    x = 28,351,165,122.79/189,873.86
  6. Step 6: Final answer
    x = 149,315.79

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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.