Home / 103,631.55-155,447.33-101,327.55

Finding the Fourth Proportional to 103,631.55, 155,447.33 and 101,327.55

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Solution

The fourth proportional to 103,631.55, 155,447.33 and 101,327.55 is: 151,991.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,631.55 : 155,447.33 = 101,327.55 : x
  2. Step 2: Convert to fraction form
    103,631.55/155,447.33 = 101,327.55/x
  3. Step 3: Cross multiply
    103,631.55x = 155,447.33 × 101,327.55
  4. Step 4: Simplify right side
    103,631.55x = 15,751,097,102.94
  5. Step 5: Solve for x
    x = 15,751,097,102.94/103,631.55
  6. Step 6: Final answer
    x = 151,991.33

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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.