Home / 99,412.20-149,021.10-88,914.60

Finding the Fourth Proportional to 99,412.20, 149,021.10 and 88,914.60

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Solution

The fourth proportional to 99,412.20, 149,021.10 and 88,914.60 is: 133,284.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,412.20 : 149,021.10 = 88,914.60 : x
  2. Step 2: Convert to fraction form
    99,412.20/149,021.10 = 88,914.60/x
  3. Step 3: Cross multiply
    99,412.20x = 149,021.10 × 88,914.60
  4. Step 4: Simplify right side
    99,412.20x = 13,250,151,498.06
  5. Step 5: Solve for x
    x = 13,250,151,498.06/99,412.20
  6. Step 6: Final answer
    x = 133,284.96

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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.