Home / 103,625.54-155,431.24-40,433.98

Finding the Fourth Proportional to 103,625.54, 155,431.24 and 40,433.98

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Solution

The fourth proportional to 103,625.54, 155,431.24 and 40,433.98 is: 60,648.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,625.54 : 155,431.24 = 40,433.98 : x
  2. Step 2: Convert to fraction form
    103,625.54/155,431.24 = 40,433.98/x
  3. Step 3: Cross multiply
    103,625.54x = 155,431.24 × 40,433.98
  4. Step 4: Simplify right side
    103,625.54x = 6,284,703,649.54
  5. Step 5: Solve for x
    x = 6,284,703,649.54/103,625.54
  6. Step 6: Final answer
    x = 60,648.21

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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.