Home / 103,784.25-143,213.76-58,447.74

Finding the Fourth Proportional to 103,784.25, 143,213.76 and 58,447.74

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Solution

The fourth proportional to 103,784.25, 143,213.76 and 58,447.74 is: 80,653.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,784.25 : 143,213.76 = 58,447.74 : x
  2. Step 2: Convert to fraction form
    103,784.25/143,213.76 = 58,447.74/x
  3. Step 3: Cross multiply
    103,784.25x = 143,213.76 × 58,447.74
  4. Step 4: Simplify right side
    103,784.25x = 8,370,520,608.90
  5. Step 5: Solve for x
    x = 8,370,520,608.90/103,784.25
  6. Step 6: Final answer
    x = 80,653.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.