Home / 104,166.48-143,710.08-77,007.78

Finding the Fourth Proportional to 104,166.48, 143,710.08 and 77,007.78

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Solution

The fourth proportional to 104,166.48, 143,710.08 and 77,007.78 is: 106,241.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,166.48 : 143,710.08 = 77,007.78 : x
  2. Step 2: Convert to fraction form
    104,166.48/143,710.08 = 77,007.78/x
  3. Step 3: Cross multiply
    104,166.48x = 143,710.08 × 77,007.78
  4. Step 4: Simplify right side
    104,166.48x = 11,066,794,224.42
  5. Step 5: Solve for x
    x = 11,066,794,224.42/104,166.48
  6. Step 6: Final answer
    x = 106,241.41

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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.