Home / 87,089.41-129,911.14-84,174.03

Finding the Fourth Proportional to 87,089.41, 129,911.14 and 84,174.03

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Solution

The fourth proportional to 87,089.41, 129,911.14 and 84,174.03 is: 125,562.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,089.41 : 129,911.14 = 84,174.03 : x
  2. Step 2: Convert to fraction form
    87,089.41/129,911.14 = 84,174.03/x
  3. Step 3: Cross multiply
    87,089.41x = 129,911.14 × 84,174.03
  4. Step 4: Simplify right side
    87,089.41x = 10,935,144,195.69
  5. Step 5: Solve for x
    x = 10,935,144,195.69/87,089.41
  6. Step 6: Final answer
    x = 125,562.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.