Home / 143,811.14-215,716.71-43,971.32

Finding the Fourth Proportional to 143,811.14, 215,716.71 and 43,971.32

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Solution

The fourth proportional to 143,811.14, 215,716.71 and 43,971.32 is: 65,956.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,811.14 : 215,716.71 = 43,971.32 : x
  2. Step 2: Convert to fraction form
    143,811.14/215,716.71 = 43,971.32/x
  3. Step 3: Cross multiply
    143,811.14x = 215,716.71 × 43,971.32
  4. Step 4: Simplify right side
    143,811.14x = 9,485,347,406.17
  5. Step 5: Solve for x
    x = 9,485,347,406.17/143,811.14
  6. Step 6: Final answer
    x = 65,956.97

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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.