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Finding the Fourth Proportional to 100,946.82, 139,306.62 and 58,529.96

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Solution

The fourth proportional to 100,946.82, 139,306.62 and 58,529.96 is: 80,771.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,946.82 : 139,306.62 = 58,529.96 : x
  2. Step 2: Convert to fraction form
    100,946.82/139,306.62 = 58,529.96/x
  3. Step 3: Cross multiply
    100,946.82x = 139,306.62 × 58,529.96
  4. Step 4: Simplify right side
    100,946.82x = 8,153,609,907.15
  5. Step 5: Solve for x
    x = 8,153,609,907.15/100,946.82
  6. Step 6: Final answer
    x = 80,771.34

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