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Finding the Fourth Proportional to 130,010.60, 194,687.85 and 103,766.60

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Solution

The fourth proportional to 130,010.60, 194,687.85 and 103,766.60 is: 155,388.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,010.60 : 194,687.85 = 103,766.60 : x
  2. Step 2: Convert to fraction form
    130,010.60/194,687.85 = 103,766.60/x
  3. Step 3: Cross multiply
    130,010.60x = 194,687.85 × 103,766.60
  4. Step 4: Simplify right side
    130,010.60x = 20,202,096,255.81
  5. Step 5: Solve for x
    x = 20,202,096,255.81/130,010.60
  6. Step 6: Final answer
    x = 155,388.07

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Why These Related Problems?

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