Home / 105,764.26-145,961.40-69,891.34

Finding the Fourth Proportional to 105,764.26, 145,961.40 and 69,891.34

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Solution

The fourth proportional to 105,764.26, 145,961.40 and 69,891.34 is: 96,454.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,764.26 : 145,961.40 = 69,891.34 : x
  2. Step 2: Convert to fraction form
    105,764.26/145,961.40 = 69,891.34/x
  3. Step 3: Cross multiply
    105,764.26x = 145,961.40 × 69,891.34
  4. Step 4: Simplify right side
    105,764.26x = 10,201,437,834.28
  5. Step 5: Solve for x
    x = 10,201,437,834.28/105,764.26
  6. Step 6: Final answer
    x = 96,454.49

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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.