Home / 143,390.86-215,091.77-53,455.95

Finding the Fourth Proportional to 143,390.86, 215,091.77 and 53,455.95

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Solution

The fourth proportional to 143,390.86, 215,091.77 and 53,455.95 is: 80,185.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,390.86 : 215,091.77 = 53,455.95 : x
  2. Step 2: Convert to fraction form
    143,390.86/215,091.77 = 53,455.95/x
  3. Step 3: Cross multiply
    143,390.86x = 215,091.77 × 53,455.95
  4. Step 4: Simplify right side
    143,390.86x = 11,497,934,635.25
  5. Step 5: Solve for x
    x = 11,497,934,635.25/143,390.86
  6. Step 6: Final answer
    x = 80,185.97

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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.