Home / 103,629.20-155,507.80-41,293.20

Finding the Fourth Proportional to 103,629.20, 155,507.80 and 41,293.20

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Solution

The fourth proportional to 103,629.20, 155,507.80 and 41,293.20 is: 61,965.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,629.20 : 155,507.80 = 41,293.20 : x
  2. Step 2: Convert to fraction form
    103,629.20/155,507.80 = 41,293.20/x
  3. Step 3: Cross multiply
    103,629.20x = 155,507.80 × 41,293.20
  4. Step 4: Simplify right side
    103,629.20x = 6,421,414,686.96
  5. Step 5: Solve for x
    x = 6,421,414,686.96/103,629.20
  6. Step 6: Final answer
    x = 61,965.30

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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.