Home / 103,743.11-143,167.93-57,805.86

Finding the Fourth Proportional to 103,743.11, 143,167.93 and 57,805.86

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Solution

The fourth proportional to 103,743.11, 143,167.93 and 57,805.86 is: 79,773.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,743.11 : 143,167.93 = 57,805.86 : x
  2. Step 2: Convert to fraction form
    103,743.11/143,167.93 = 57,805.86/x
  3. Step 3: Cross multiply
    103,743.11x = 143,167.93 × 57,805.86
  4. Step 4: Simplify right side
    103,743.11x = 8,275,944,457.72
  5. Step 5: Solve for x
    x = 8,275,944,457.72/103,743.11
  6. Step 6: Final answer
    x = 79,773.44

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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.