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Finding the Fourth Proportional to 99,314.60, 148,842.30 and 40,101.80

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Solution

The fourth proportional to 99,314.60, 148,842.30 and 40,101.80 is: 60,100.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,314.60 : 148,842.30 = 40,101.80 : x
  2. Step 2: Convert to fraction form
    99,314.60/148,842.30 = 40,101.80/x
  3. Step 3: Cross multiply
    99,314.60x = 148,842.30 × 40,101.80
  4. Step 4: Simplify right side
    99,314.60x = 5,968,844,146.14
  5. Step 5: Solve for x
    x = 5,968,844,146.14/99,314.60
  6. Step 6: Final answer
    x = 60,100.37

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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.