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Finding the Fourth Proportional to 189,652.98, 284,619.45 and 89,812.98

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Solution

The fourth proportional to 189,652.98, 284,619.45 and 89,812.98 is: 134,785.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,652.98 : 284,619.45 = 89,812.98 : x
  2. Step 2: Convert to fraction form
    189,652.98/284,619.45 = 89,812.98/x
  3. Step 3: Cross multiply
    189,652.98x = 284,619.45 × 89,812.98
  4. Step 4: Simplify right side
    189,652.98x = 25,562,520,970.46
  5. Step 5: Solve for x
    x = 25,562,520,970.46/189,652.98
  6. Step 6: Final answer
    x = 134,785.76

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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.