Home / 103,805.96-155,580.45-73,772.29

Finding the Fourth Proportional to 103,805.96, 155,580.45 and 73,772.29

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Solution

The fourth proportional to 103,805.96, 155,580.45 and 73,772.29 is: 110,567.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,805.96 : 155,580.45 = 73,772.29 : x
  2. Step 2: Convert to fraction form
    103,805.96/155,580.45 = 73,772.29/x
  3. Step 3: Cross multiply
    103,805.96x = 155,580.45 × 73,772.29
  4. Step 4: Simplify right side
    103,805.96x = 11,477,526,431.13
  5. Step 5: Solve for x
    x = 11,477,526,431.13/103,805.96
  6. Step 6: Final answer
    x = 110,567.13

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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.