Home / 103,512.55-155,287.05-36,991.30

Finding the Fourth Proportional to 103,512.55, 155,287.05 and 36,991.30

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Solution

The fourth proportional to 103,512.55, 155,287.05 and 36,991.30 is: 55,493.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,512.55 : 155,287.05 = 36,991.30 : x
  2. Step 2: Convert to fraction form
    103,512.55/155,287.05 = 36,991.30/x
  3. Step 3: Cross multiply
    103,512.55x = 155,287.05 × 36,991.30
  4. Step 4: Simplify right side
    103,512.55x = 5,744,269,852.67
  5. Step 5: Solve for x
    x = 5,744,269,852.67/103,512.55
  6. Step 6: Final answer
    x = 55,493.46

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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.