Home / 151,907.70-227,205.45-128,288.10

Finding the Fourth Proportional to 151,907.70, 227,205.45 and 128,288.10

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Solution

The fourth proportional to 151,907.70, 227,205.45 and 128,288.10 is: 191,878.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,907.70 : 227,205.45 = 128,288.10 : x
  2. Step 2: Convert to fraction form
    151,907.70/227,205.45 = 128,288.10/x
  3. Step 3: Cross multiply
    151,907.70x = 227,205.45 × 128,288.10
  4. Step 4: Simplify right side
    151,907.70x = 29,147,755,490.15
  5. Step 5: Solve for x
    x = 29,147,755,490.15/151,907.70
  6. Step 6: Final answer
    x = 191,878.06

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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.