Home / 143,756.64-215,667.77-43,931.03

Finding the Fourth Proportional to 143,756.64, 215,667.77 and 43,931.03

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Solution

The fourth proportional to 143,756.64, 215,667.77 and 43,931.03 is: 65,906.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,756.64 : 215,667.77 = 43,931.03 : x
  2. Step 2: Convert to fraction form
    143,756.64/215,667.77 = 43,931.03/x
  3. Step 3: Cross multiply
    143,756.64x = 215,667.77 × 43,931.03
  4. Step 4: Simplify right side
    143,756.64x = 9,474,505,975.91
  5. Step 5: Solve for x
    x = 9,474,505,975.91/143,756.64
  6. Step 6: Final answer
    x = 65,906.56

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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.