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Finding the Fourth Proportional to 99,350.70, 148,984.57 and 40,144.87

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Solution

The fourth proportional to 99,350.70, 148,984.57 and 40,144.87 is: 60,200.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,350.70 : 148,984.57 = 40,144.87 : x
  2. Step 2: Convert to fraction form
    99,350.70/148,984.57 = 40,144.87/x
  3. Step 3: Cross multiply
    99,350.70x = 148,984.57 × 40,144.87
  4. Step 4: Simplify right side
    99,350.70x = 5,980,966,194.66
  5. Step 5: Solve for x
    x = 5,980,966,194.66/99,350.70
  6. Step 6: Final answer
    x = 60,200.54

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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.