Home / 103,331.30-155,054.35-55,945.69

Finding the Fourth Proportional to 103,331.30, 155,054.35 and 55,945.69

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Solution

The fourth proportional to 103,331.30, 155,054.35 and 55,945.69 is: 83,949.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,331.30 : 155,054.35 = 55,945.69 : x
  2. Step 2: Convert to fraction form
    103,331.30/155,054.35 = 55,945.69/x
  3. Step 3: Cross multiply
    103,331.30x = 155,054.35 × 55,945.69
  4. Step 4: Simplify right side
    103,331.30x = 8,674,622,280.55
  5. Step 5: Solve for x
    x = 8,674,622,280.55/103,331.30
  6. Step 6: Final answer
    x = 83,949.61

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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.