Home / 151,855.23-228,016.94-128,470.05

Finding the Fourth Proportional to 151,855.23, 228,016.94 and 128,470.05

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Solution

The fourth proportional to 151,855.23, 228,016.94 and 128,470.05 is: 192,903.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,855.23 : 228,016.94 = 128,470.05 : x
  2. Step 2: Convert to fraction form
    151,855.23/228,016.94 = 128,470.05/x
  3. Step 3: Cross multiply
    151,855.23x = 228,016.94 × 128,470.05
  4. Step 4: Simplify right side
    151,855.23x = 29,293,347,682.65
  5. Step 5: Solve for x
    x = 29,293,347,682.65/151,855.23
  6. Step 6: Final answer
    x = 192,903.12

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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.