Home / 103,515.80-155,235.30-41,173.40

Finding the Fourth Proportional to 103,515.80, 155,235.30 and 41,173.40

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Solution

The fourth proportional to 103,515.80, 155,235.30 and 41,173.40 is: 61,744.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,515.80 : 155,235.30 = 41,173.40 : x
  2. Step 2: Convert to fraction form
    103,515.80/155,235.30 = 41,173.40/x
  3. Step 3: Cross multiply
    103,515.80x = 155,235.30 × 41,173.40
  4. Step 4: Simplify right side
    103,515.80x = 6,391,565,101.02
  5. Step 5: Solve for x
    x = 6,391,565,101.02/103,515.80
  6. Step 6: Final answer
    x = 61,744.83

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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.