Home / 143,813.39-215,720.09-43,973.57

Finding the Fourth Proportional to 143,813.39, 215,720.09 and 43,973.57

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Solution

The fourth proportional to 143,813.39, 215,720.09 and 43,973.57 is: 65,960.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,813.39 : 215,720.09 = 43,973.57 : x
  2. Step 2: Convert to fraction form
    143,813.39/215,720.09 = 43,973.57/x
  3. Step 3: Cross multiply
    143,813.39x = 215,720.09 × 43,973.57
  4. Step 4: Simplify right side
    143,813.39x = 9,485,981,179.55
  5. Step 5: Solve for x
    x = 9,485,981,179.55/143,813.39
  6. Step 6: Final answer
    x = 65,960.35

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1.5x scale

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.