Home / 103,401.35-155,005.06-40,261.98

Finding the Fourth Proportional to 103,401.35, 155,005.06 and 40,261.98

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Solution

The fourth proportional to 103,401.35, 155,005.06 and 40,261.98 is: 60,355.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,401.35 : 155,005.06 = 40,261.98 : x
  2. Step 2: Convert to fraction form
    103,401.35/155,005.06 = 40,261.98/x
  3. Step 3: Cross multiply
    103,401.35x = 155,005.06 × 40,261.98
  4. Step 4: Simplify right side
    103,401.35x = 6,240,810,625.62
  5. Step 5: Solve for x
    x = 6,240,810,625.62/103,401.35
  6. Step 6: Final answer
    x = 60,355.21

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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.