Home / 98,754.48-148,131.72-54,358.38

Finding the Fourth Proportional to 98,754.48, 148,131.72 and 54,358.38

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Solution

The fourth proportional to 98,754.48, 148,131.72 and 54,358.38 is: 81,537.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,754.48 : 148,131.72 = 54,358.38 : x
  2. Step 2: Convert to fraction form
    98,754.48/148,131.72 = 54,358.38/x
  3. Step 3: Cross multiply
    98,754.48x = 148,131.72 × 54,358.38
  4. Step 4: Simplify right side
    98,754.48x = 8,052,200,325.81
  5. Step 5: Solve for x
    x = 8,052,200,325.81/98,754.48
  6. Step 6: Final answer
    x = 81,537.57

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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.