Home / 166,393.89-229,728.81-128,081.42

Finding the Fourth Proportional to 166,393.89, 229,728.81 and 128,081.42

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Solution

The fourth proportional to 166,393.89, 229,728.81 and 128,081.42 is: 176,833.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,393.89 : 229,728.81 = 128,081.42 : x
  2. Step 2: Convert to fraction form
    166,393.89/229,728.81 = 128,081.42/x
  3. Step 3: Cross multiply
    166,393.89x = 229,728.81 × 128,081.42
  4. Step 4: Simplify right side
    166,393.89x = 29,423,992,392.85
  5. Step 5: Solve for x
    x = 29,423,992,392.85/166,393.89
  6. Step 6: Final answer
    x = 176,833.37

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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.