Home / 105,264.22-145,265.64-57,517.56

Finding the Fourth Proportional to 105,264.22, 145,265.64 and 57,517.56

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Solution

The fourth proportional to 105,264.22, 145,265.64 and 57,517.56 is: 79,374.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,264.22 : 145,265.64 = 57,517.56 : x
  2. Step 2: Convert to fraction form
    105,264.22/145,265.64 = 57,517.56/x
  3. Step 3: Cross multiply
    105,264.22x = 145,265.64 × 57,517.56
  4. Step 4: Simplify right side
    105,264.22x = 8,355,325,164.64
  5. Step 5: Solve for x
    x = 8,355,325,164.64/105,264.22
  6. Step 6: Final answer
    x = 79,374.79

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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.