Home / 103,461.40-155,192.10-41,131.90

Finding the Fourth Proportional to 103,461.40, 155,192.10 and 41,131.90

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Solution

The fourth proportional to 103,461.40, 155,192.10 and 41,131.90 is: 61,697.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,461.40 : 155,192.10 = 41,131.90 : x
  2. Step 2: Convert to fraction form
    103,461.40/155,192.10 = 41,131.90/x
  3. Step 3: Cross multiply
    103,461.40x = 155,192.10 × 41,131.90
  4. Step 4: Simplify right side
    103,461.40x = 6,383,345,937.99
  5. Step 5: Solve for x
    x = 6,383,345,937.99/103,461.40
  6. Step 6: Final answer
    x = 61,697.85

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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.