Home / 158,564.14-218,816.82-86,943.94

Finding the Fourth Proportional to 158,564.14, 218,816.82 and 86,943.94

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Solution

The fourth proportional to 158,564.14, 218,816.82 and 86,943.94 is: 119,981.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,564.14 : 218,816.82 = 86,943.94 : x
  2. Step 2: Convert to fraction form
    158,564.14/218,816.82 = 86,943.94/x
  3. Step 3: Cross multiply
    158,564.14x = 218,816.82 × 86,943.94
  4. Step 4: Simplify right side
    158,564.14x = 19,024,796,469.07
  5. Step 5: Solve for x
    x = 19,024,796,469.07/158,564.14
  6. Step 6: Final answer
    x = 119,981.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.