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Finding the Fourth Proportional to 143,833.98, 215,752.77 and 55,092.81

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Solution

The fourth proportional to 143,833.98, 215,752.77 and 55,092.81 is: 82,639.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,833.98 : 215,752.77 = 55,092.81 : x
  2. Step 2: Convert to fraction form
    143,833.98/215,752.77 = 55,092.81/x
  3. Step 3: Cross multiply
    143,833.98x = 215,752.77 × 55,092.81
  4. Step 4: Simplify right side
    143,833.98x = 11,886,426,364.58
  5. Step 5: Solve for x
    x = 11,886,426,364.58/143,833.98
  6. Step 6: Final answer
    x = 82,639.90

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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.