Home / 99,212.72-148,823.60-28,140.44

Finding the Fourth Proportional to 99,212.72, 148,823.60 and 28,140.44

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Solution

The fourth proportional to 99,212.72, 148,823.60 and 28,140.44 is: 42,211.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,212.72 : 148,823.60 = 28,140.44 : x
  2. Step 2: Convert to fraction form
    99,212.72/148,823.60 = 28,140.44/x
  3. Step 3: Cross multiply
    99,212.72x = 148,823.60 × 28,140.44
  4. Step 4: Simplify right side
    99,212.72x = 4,187,961,586.38
  5. Step 5: Solve for x
    x = 4,187,961,586.38/99,212.72
  6. Step 6: Final answer
    x = 42,211.94

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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.