Home / 154,864.20-232,004.70-79,728.60

Finding the Fourth Proportional to 154,864.20, 232,004.70 and 79,728.60

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Solution

The fourth proportional to 154,864.20, 232,004.70 and 79,728.60 is: 119,442.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,864.20 : 232,004.70 = 79,728.60 : x
  2. Step 2: Convert to fraction form
    154,864.20/232,004.70 = 79,728.60/x
  3. Step 3: Cross multiply
    154,864.20x = 232,004.70 × 79,728.60
  4. Step 4: Simplify right side
    154,864.20x = 18,497,409,924.42
  5. Step 5: Solve for x
    x = 18,497,409,924.42/154,864.20
  6. Step 6: Final answer
    x = 119,442.78

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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.