Home / 189,555.30-284,138.55-110,628.90

Finding the Fourth Proportional to 189,555.30, 284,138.55 and 110,628.90

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Solution

The fourth proportional to 189,555.30, 284,138.55 and 110,628.90 is: 165,829.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,555.30 : 284,138.55 = 110,628.90 : x
  2. Step 2: Convert to fraction form
    189,555.30/284,138.55 = 110,628.90/x
  3. Step 3: Cross multiply
    189,555.30x = 284,138.55 × 110,628.90
  4. Step 4: Simplify right side
    189,555.30x = 31,433,935,234.10
  5. Step 5: Solve for x
    x = 31,433,935,234.10/189,555.30
  6. Step 6: Final answer
    x = 165,829.89

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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.