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Finding the Fourth Proportional to 100,773.97, 151,155.47 and 30,647.81

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Solution

The fourth proportional to 100,773.97, 151,155.47 and 30,647.81 is: 45,970.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,773.97 : 151,155.47 = 30,647.81 : x
  2. Step 2: Convert to fraction form
    100,773.97/151,155.47 = 30,647.81/x
  3. Step 3: Cross multiply
    100,773.97x = 151,155.47 × 30,647.81
  4. Step 4: Simplify right side
    100,773.97x = 4,632,584,579.53
  5. Step 5: Solve for x
    x = 4,632,584,579.53/100,773.97
  6. Step 6: Final answer
    x = 45,970.05

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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.