Home / 149,035.85-205,671.25-81,054.52

Finding the Fourth Proportional to 149,035.85, 205,671.25 and 81,054.52

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Solution

The fourth proportional to 149,035.85, 205,671.25 and 81,054.52 is: 111,856.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,035.85 : 205,671.25 = 81,054.52 : x
  2. Step 2: Convert to fraction form
    149,035.85/205,671.25 = 81,054.52/x
  3. Step 3: Cross multiply
    149,035.85x = 205,671.25 × 81,054.52
  4. Step 4: Simplify right side
    149,035.85x = 16,670,585,190.59
  5. Step 5: Solve for x
    x = 16,670,585,190.59/149,035.85
  6. Step 6: Final answer
    x = 111,856.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.