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Finding the Fourth Proportional to 105,046.60, 144,958.98 and 57,299.56

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Solution

The fourth proportional to 105,046.60, 144,958.98 and 57,299.56 is: 79,070.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,046.60 : 144,958.98 = 57,299.56 : x
  2. Step 2: Convert to fraction form
    105,046.60/144,958.98 = 57,299.56/x
  3. Step 3: Cross multiply
    105,046.60x = 144,958.98 × 57,299.56
  4. Step 4: Simplify right side
    105,046.60x = 8,306,085,772.05
  5. Step 5: Solve for x
    x = 8,306,085,772.05/105,046.60
  6. Step 6: Final answer
    x = 79,070.49

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1.5x scale

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.