Home / 103,635.90-155,447.46-37,072.80

Finding the Fourth Proportional to 103,635.90, 155,447.46 and 37,072.80

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Solution

The fourth proportional to 103,635.90, 155,447.46 and 37,072.80 is: 55,606.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,635.90 : 155,447.46 = 37,072.80 : x
  2. Step 2: Convert to fraction form
    103,635.90/155,447.46 = 37,072.80/x
  3. Step 3: Cross multiply
    103,635.90x = 155,447.46 × 37,072.80
  4. Step 4: Simplify right side
    103,635.90x = 5,762,872,595.09
  5. Step 5: Solve for x
    x = 5,762,872,595.09/103,635.90
  6. Step 6: Final answer
    x = 55,606.91

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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.