Home / 105,266.22-145,268.40-57,519.56

Finding the Fourth Proportional to 105,266.22, 145,268.40 and 57,519.56

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Solution

The fourth proportional to 105,266.22, 145,268.40 and 57,519.56 is: 79,377.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,266.22 : 145,268.40 = 57,519.56 : x
  2. Step 2: Convert to fraction form
    105,266.22/145,268.40 = 57,519.56/x
  3. Step 3: Cross multiply
    105,266.22x = 145,268.40 × 57,519.56
  4. Step 4: Simplify right side
    105,266.22x = 8,355,774,449.90
  5. Step 5: Solve for x
    x = 8,355,774,449.90/105,266.22
  6. Step 6: Final answer
    x = 79,377.55

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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.