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Finding the Fourth Proportional to 103,950, 143,451.40 and 58,011.60

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Solution

The fourth proportional to 103,950, 143,451.40 and 58,011.60 is: 80,056.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,950 : 143,451.40 = 58,011.60 : x
  2. Step 2: Convert to fraction form
    103,950/143,451.40 = 58,011.60/x
  3. Step 3: Cross multiply
    103,950x = 143,451.40 × 58,011.60
  4. Step 4: Simplify right side
    103,950x = 8,321,845,236.24
  5. Step 5: Solve for x
    x = 8,321,845,236.24/103,950
  6. Step 6: Final answer
    x = 80,056.23

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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.