Home / 189,427.98-284,180.58-77,107.26

Finding the Fourth Proportional to 189,427.98, 284,180.58 and 77,107.26

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Solution

The fourth proportional to 189,427.98, 284,180.58 and 77,107.26 is: 115,676.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,427.98 : 284,180.58 = 77,107.26 : x
  2. Step 2: Convert to fraction form
    189,427.98/284,180.58 = 77,107.26/x
  3. Step 3: Cross multiply
    189,427.98x = 284,180.58 × 77,107.26
  4. Step 4: Simplify right side
    189,427.98x = 21,912,385,869.01
  5. Step 5: Solve for x
    x = 21,912,385,869.01/189,427.98
  6. Step 6: Final answer
    x = 115,676.61

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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.