Home / 188,221.40-282,158.85-81,538.31

Finding the Fourth Proportional to 188,221.40, 282,158.85 and 81,538.31

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Solution

The fourth proportional to 188,221.40, 282,158.85 and 81,538.31 is: 122,232.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,221.40 : 282,158.85 = 81,538.31 : x
  2. Step 2: Convert to fraction form
    188,221.40/282,158.85 = 81,538.31/x
  3. Step 3: Cross multiply
    188,221.40x = 282,158.85 × 81,538.31
  4. Step 4: Simplify right side
    188,221.40x = 23,006,755,780.54
  5. Step 5: Solve for x
    x = 23,006,755,780.54/188,221.40
  6. Step 6: Final answer
    x = 122,232.41

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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.