Home / 105,216.55-145,194.62-57,471.60

Finding the Fourth Proportional to 105,216.55, 145,194.62 and 57,471.60

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Solution

The fourth proportional to 105,216.55, 145,194.62 and 57,471.60 is: 79,308.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,216.55 : 145,194.62 = 57,471.60 : x
  2. Step 2: Convert to fraction form
    105,216.55/145,194.62 = 57,471.60/x
  3. Step 3: Cross multiply
    105,216.55x = 145,194.62 × 57,471.60
  4. Step 4: Simplify right side
    105,216.55x = 8,344,567,379.91
  5. Step 5: Solve for x
    x = 8,344,567,379.91/105,216.55
  6. Step 6: Final answer
    x = 79,308.51

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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.