Home / 99,469.42-149,209.09-28,402.60

Finding the Fourth Proportional to 99,469.42, 149,209.09 and 28,402.60

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Solution

The fourth proportional to 99,469.42, 149,209.09 and 28,402.60 is: 42,605.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,469.42 : 149,209.09 = 28,402.60 : x
  2. Step 2: Convert to fraction form
    99,469.42/149,209.09 = 28,402.60/x
  3. Step 3: Cross multiply
    99,469.42x = 149,209.09 × 28,402.60
  4. Step 4: Simplify right side
    99,469.42x = 4,237,926,099.63
  5. Step 5: Solve for x
    x = 4,237,926,099.63/99,469.42
  6. Step 6: Final answer
    x = 42,605.32

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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.