Home / 143,979.36-215,996.81-55,225.95

Finding the Fourth Proportional to 143,979.36, 215,996.81 and 55,225.95

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Solution

The fourth proportional to 143,979.36, 215,996.81 and 55,225.95 is: 82,849.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,979.36 : 215,996.81 = 55,225.95 : x
  2. Step 2: Convert to fraction form
    143,979.36/215,996.81 = 55,225.95/x
  3. Step 3: Cross multiply
    143,979.36x = 215,996.81 × 55,225.95
  4. Step 4: Simplify right side
    143,979.36x = 11,928,628,334.86
  5. Step 5: Solve for x
    x = 11,928,628,334.86/143,979.36
  6. Step 6: Final answer
    x = 82,849.57

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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.