Home / 103,163.40-154,745.10-40,833.90

Finding the Fourth Proportional to 103,163.40, 154,745.10 and 40,833.90

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Solution

The fourth proportional to 103,163.40, 154,745.10 and 40,833.90 is: 61,250.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,163.40 : 154,745.10 = 40,833.90 : x
  2. Step 2: Convert to fraction form
    103,163.40/154,745.10 = 40,833.90/x
  3. Step 3: Cross multiply
    103,163.40x = 154,745.10 × 40,833.90
  4. Step 4: Simplify right side
    103,163.40x = 6,318,845,938.89
  5. Step 5: Solve for x
    x = 6,318,845,938.89/103,163.40
  6. Step 6: Final answer
    x = 61,250.85

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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.