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Finding the Fourth Proportional to 189,003.74, 283,560.98 and 55,887.45

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Solution

The fourth proportional to 189,003.74, 283,560.98 and 55,887.45 is: 83,847.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,003.74 : 283,560.98 = 55,887.45 : x
  2. Step 2: Convert to fraction form
    189,003.74/283,560.98 = 55,887.45/x
  3. Step 3: Cross multiply
    189,003.74x = 283,560.98 × 55,887.45
  4. Step 4: Simplify right side
    189,003.74x = 15,847,499,812.26
  5. Step 5: Solve for x
    x = 15,847,499,812.26/189,003.74
  6. Step 6: Final answer
    x = 83,847.55

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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.