Home / 105,094.20-145,027.26-57,348.12

Finding the Fourth Proportional to 105,094.20, 145,027.26 and 57,348.12

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Solution

The fourth proportional to 105,094.20, 145,027.26 and 57,348.12 is: 79,138.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,094.20 : 145,027.26 = 57,348.12 : x
  2. Step 2: Convert to fraction form
    105,094.20/145,027.26 = 57,348.12/x
  3. Step 3: Cross multiply
    105,094.20x = 145,027.26 × 57,348.12
  4. Step 4: Simplify right side
    105,094.20x = 8,317,040,709.75
  5. Step 5: Solve for x
    x = 8,317,040,709.75/105,094.20
  6. Step 6: Final answer
    x = 79,138.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.