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Finding the Fourth Proportional to 141,910.60, 212,574.30 and 71,829.40

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Solution

The fourth proportional to 141,910.60, 212,574.30 and 71,829.40 is: 107,596.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,910.60 : 212,574.30 = 71,829.40 : x
  2. Step 2: Convert to fraction form
    141,910.60/212,574.30 = 71,829.40/x
  3. Step 3: Cross multiply
    141,910.60x = 212,574.30 × 71,829.40
  4. Step 4: Simplify right side
    141,910.60x = 15,269,084,424.42
  5. Step 5: Solve for x
    x = 15,269,084,424.42/141,910.60
  6. Step 6: Final answer
    x = 107,596.50

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.