Home / 154,133.86-231,199.70-79,274.88

Finding the Fourth Proportional to 154,133.86, 231,199.70 and 79,274.88

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Solution

The fourth proportional to 154,133.86, 231,199.70 and 79,274.88 is: 118,911.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,133.86 : 231,199.70 = 79,274.88 : x
  2. Step 2: Convert to fraction form
    154,133.86/231,199.70 = 79,274.88/x
  3. Step 3: Cross multiply
    154,133.86x = 231,199.70 × 79,274.88
  4. Step 4: Simplify right side
    154,133.86x = 18,328,328,473.54
  5. Step 5: Solve for x
    x = 18,328,328,473.54/154,133.86
  6. Step 6: Final answer
    x = 118,911.76

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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.