Home / 103,825.73-143,341.75-68,078.10

Finding the Fourth Proportional to 103,825.73, 143,341.75 and 68,078.10

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Solution

The fourth proportional to 103,825.73, 143,341.75 and 68,078.10 is: 93,988.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,825.73 : 143,341.75 = 68,078.10 : x
  2. Step 2: Convert to fraction form
    103,825.73/143,341.75 = 68,078.10/x
  3. Step 3: Cross multiply
    103,825.73x = 143,341.75 × 68,078.10
  4. Step 4: Simplify right side
    103,825.73x = 9,758,434,613.30
  5. Step 5: Solve for x
    x = 9,758,434,613.30/103,825.73
  6. Step 6: Final answer
    x = 93,988.59

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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.