Home / 189,453.80-284,029.75-109,400.89

Finding the Fourth Proportional to 189,453.80, 284,029.75 and 109,400.89

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Solution

The fourth proportional to 189,453.80, 284,029.75 and 109,400.89 is: 164,014.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,453.80 : 284,029.75 = 109,400.89 : x
  2. Step 2: Convert to fraction form
    189,453.80/284,029.75 = 109,400.89/x
  3. Step 3: Cross multiply
    189,453.80x = 284,029.75 × 109,400.89
  4. Step 4: Simplify right side
    189,453.80x = 31,073,107,436.48
  5. Step 5: Solve for x
    x = 31,073,107,436.48/189,453.80
  6. Step 6: Final answer
    x = 164,014.17

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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.