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Finding the Fourth Proportional to 104,001.45, 155,860.83 and 43,980.05

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Solution

The fourth proportional to 104,001.45, 155,860.83 and 43,980.05 is: 65,910.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,001.45 : 155,860.83 = 43,980.05 : x
  2. Step 2: Convert to fraction form
    104,001.45/155,860.83 = 43,980.05/x
  3. Step 3: Cross multiply
    104,001.45x = 155,860.83 × 43,980.05
  4. Step 4: Simplify right side
    104,001.45x = 6,854,766,317.14
  5. Step 5: Solve for x
    x = 6,854,766,317.14/104,001.45
  6. Step 6: Final answer
    x = 65,910.30

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1.5x scale

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.