Home / 158,453.38-218,665.73-86,836.28

Finding the Fourth Proportional to 158,453.38, 218,665.73 and 86,836.28

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Solution

The fourth proportional to 158,453.38, 218,665.73 and 86,836.28 is: 119,834.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,453.38 : 218,665.73 = 86,836.28 : x
  2. Step 2: Convert to fraction form
    158,453.38/218,665.73 = 86,836.28/x
  3. Step 3: Cross multiply
    158,453.38x = 218,665.73 × 86,836.28
  4. Step 4: Simplify right side
    158,453.38x = 18,988,118,122.50
  5. Step 5: Solve for x
    x = 18,988,118,122.50/158,453.38
  6. Step 6: Final answer
    x = 119,834.10

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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.