Home / 89,027.40-133,694.70-86,262.60

Finding the Fourth Proportional to 89,027.40, 133,694.70 and 86,262.60

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Solution

The fourth proportional to 89,027.40, 133,694.70 and 86,262.60 is: 129,542.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,027.40 : 133,694.70 = 86,262.60 : x
  2. Step 2: Convert to fraction form
    89,027.40/133,694.70 = 86,262.60/x
  3. Step 3: Cross multiply
    89,027.40x = 133,694.70 × 86,262.60
  4. Step 4: Simplify right side
    89,027.40x = 11,532,852,428.22
  5. Step 5: Solve for x
    x = 11,532,852,428.22/89,027.40
  6. Step 6: Final answer
    x = 129,542.73

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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.