Home / 103,658.43-155,389.13-40,519.03

Finding the Fourth Proportional to 103,658.43, 155,389.13 and 40,519.03

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Solution

The fourth proportional to 103,658.43, 155,389.13 and 40,519.03 is: 60,740.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,658.43 : 155,389.13 = 40,519.03 : x
  2. Step 2: Convert to fraction form
    103,658.43/155,389.13 = 40,519.03/x
  3. Step 3: Cross multiply
    103,658.43x = 155,389.13 × 40,519.03
  4. Step 4: Simplify right side
    103,658.43x = 6,296,216,617.55
  5. Step 5: Solve for x
    x = 6,296,216,617.55/103,658.43
  6. Step 6: Final answer
    x = 60,740.03

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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.