Home / 99,078.20-148,658.99-61,669.57

Finding the Fourth Proportional to 99,078.20, 148,658.99 and 61,669.57

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Solution

The fourth proportional to 99,078.20, 148,658.99 and 61,669.57 is: 92,530.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,078.20 : 148,658.99 = 61,669.57 : x
  2. Step 2: Convert to fraction form
    99,078.20/148,658.99 = 61,669.57/x
  3. Step 3: Cross multiply
    99,078.20x = 148,658.99 × 61,669.57
  4. Step 4: Simplify right side
    99,078.20x = 9,167,735,989.93
  5. Step 5: Solve for x
    x = 9,167,735,989.93/99,078.20
  6. Step 6: Final answer
    x = 92,530.30

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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.