Home / 104,255.84-143,869.56-61,789.16

Finding the Fourth Proportional to 104,255.84, 143,869.56 and 61,789.16

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Solution

The fourth proportional to 104,255.84, 143,869.56 and 61,789.16 is: 85,266.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,255.84 : 143,869.56 = 61,789.16 : x
  2. Step 2: Convert to fraction form
    104,255.84/143,869.56 = 61,789.16/x
  3. Step 3: Cross multiply
    104,255.84x = 143,869.56 × 61,789.16
  4. Step 4: Simplify right side
    104,255.84x = 8,889,579,261.97
  5. Step 5: Solve for x
    x = 8,889,579,261.97/104,255.84
  6. Step 6: Final answer
    x = 85,266.97

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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.