Home / 154,484.20-231,434.70-79,348.60

Finding the Fourth Proportional to 154,484.20, 231,434.70 and 79,348.60

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Solution

The fourth proportional to 154,484.20, 231,434.70 and 79,348.60 is: 118,873.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,484.20 : 231,434.70 = 79,348.60 : x
  2. Step 2: Convert to fraction form
    154,484.20/231,434.70 = 79,348.60/x
  3. Step 3: Cross multiply
    154,484.20x = 231,434.70 × 79,348.60
  4. Step 4: Simplify right side
    154,484.20x = 18,364,019,436.42
  5. Step 5: Solve for x
    x = 18,364,019,436.42/154,484.20
  6. Step 6: Final answer
    x = 118,873.12

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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.