Home / 143,505.15-215,265.83-43,668.60

Finding the Fourth Proportional to 143,505.15, 215,265.83 and 43,668.60

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Solution

The fourth proportional to 143,505.15, 215,265.83 and 43,668.60 is: 65,505.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,505.15 : 215,265.83 = 43,668.60 : x
  2. Step 2: Convert to fraction form
    143,505.15/215,265.83 = 43,668.60/x
  3. Step 3: Cross multiply
    143,505.15x = 215,265.83 × 43,668.60
  4. Step 4: Simplify right side
    143,505.15x = 9,400,357,205.60
  5. Step 5: Solve for x
    x = 9,400,357,205.60/143,505.15
  6. Step 6: Final answer
    x = 65,505.36

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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.