Home / 214,178.98-321,309.03-86,105.17

Finding the Fourth Proportional to 214,178.98, 321,309.03 and 86,105.17

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Solution

The fourth proportional to 214,178.98, 321,309.03 and 86,105.17 is: 129,174.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,178.98 : 321,309.03 = 86,105.17 : x
  2. Step 2: Convert to fraction form
    214,178.98/321,309.03 = 86,105.17/x
  3. Step 3: Cross multiply
    214,178.98x = 321,309.03 × 86,105.17
  4. Step 4: Simplify right side
    214,178.98x = 27,666,368,650.69
  5. Step 5: Solve for x
    x = 27,666,368,650.69/214,178.98
  6. Step 6: Final answer
    x = 129,174.06

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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.