Home / 104,156.97-143,696.98-76,998.26

Finding the Fourth Proportional to 104,156.97, 143,696.98 and 76,998.26

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Solution

The fourth proportional to 104,156.97, 143,696.98 and 76,998.26 is: 106,228.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,156.97 : 143,696.98 = 76,998.26 : x
  2. Step 2: Convert to fraction form
    104,156.97/143,696.98 = 76,998.26/x
  3. Step 3: Cross multiply
    104,156.97x = 143,696.98 × 76,998.26
  4. Step 4: Simplify right side
    104,156.97x = 11,064,417,427.25
  5. Step 5: Solve for x
    x = 11,064,417,427.25/104,156.97
  6. Step 6: Final answer
    x = 106,228.30

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1.5x scale

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.