Home / 103,353.13-155,064.21-40,175.38

Finding the Fourth Proportional to 103,353.13, 155,064.21 and 40,175.38

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Solution

The fourth proportional to 103,353.13, 155,064.21 and 40,175.38 is: 60,276.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,353.13 : 155,064.21 = 40,175.38 : x
  2. Step 2: Convert to fraction form
    103,353.13/155,064.21 = 40,175.38/x
  3. Step 3: Cross multiply
    103,353.13x = 155,064.21 × 40,175.38
  4. Step 4: Simplify right side
    103,353.13x = 6,229,763,561.15
  5. Step 5: Solve for x
    x = 6,229,763,561.15/103,353.13
  6. Step 6: Final answer
    x = 60,276.49

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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.