Home / 104,860.17-157,134.75-77,022.09

Finding the Fourth Proportional to 104,860.17, 157,134.75 and 77,022.09

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Solution

The fourth proportional to 104,860.17, 157,134.75 and 77,022.09 is: 115,418.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,860.17 : 157,134.75 = 77,022.09 : x
  2. Step 2: Convert to fraction form
    104,860.17/157,134.75 = 77,022.09/x
  3. Step 3: Cross multiply
    104,860.17x = 157,134.75 × 77,022.09
  4. Step 4: Simplify right side
    104,860.17x = 12,102,846,856.63
  5. Step 5: Solve for x
    x = 12,102,846,856.63/104,860.17
  6. Step 6: Final answer
    x = 115,418.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.