Home / 89,218.14-133,993.56-78,548.28

Finding the Fourth Proportional to 89,218.14, 133,993.56 and 78,548.28

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Solution

The fourth proportional to 89,218.14, 133,993.56 and 78,548.28 is: 117,968.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,218.14 : 133,993.56 = 78,548.28 : x
  2. Step 2: Convert to fraction form
    89,218.14/133,993.56 = 78,548.28/x
  3. Step 3: Cross multiply
    89,218.14x = 133,993.56 × 78,548.28
  4. Step 4: Simplify right side
    89,218.14x = 10,524,963,669.08
  5. Step 5: Solve for x
    x = 10,524,963,669.08/89,218.14
  6. Step 6: Final answer
    x = 117,968.88

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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.