Home / 105,786.62-145,995.43-60,455.75

Finding the Fourth Proportional to 105,786.62, 145,995.43 and 60,455.75

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Solution

The fourth proportional to 105,786.62, 145,995.43 and 60,455.75 is: 83,434.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,786.62 : 145,995.43 = 60,455.75 : x
  2. Step 2: Convert to fraction form
    105,786.62/145,995.43 = 60,455.75/x
  3. Step 3: Cross multiply
    105,786.62x = 145,995.43 × 60,455.75
  4. Step 4: Simplify right side
    105,786.62x = 8,826,263,097.44
  5. Step 5: Solve for x
    x = 8,826,263,097.44/105,786.62
  6. Step 6: Final answer
    x = 83,434.59

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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.