Home / 104,257.09-143,871.28-61,790.41

Finding the Fourth Proportional to 104,257.09, 143,871.28 and 61,790.41

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Solution

The fourth proportional to 104,257.09, 143,871.28 and 61,790.41 is: 85,268.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,257.09 : 143,871.28 = 61,790.41 : x
  2. Step 2: Convert to fraction form
    104,257.09/143,871.28 = 61,790.41/x
  3. Step 3: Cross multiply
    104,257.09x = 143,871.28 × 61,790.41
  4. Step 4: Simplify right side
    104,257.09x = 8,889,865,378.42
  5. Step 5: Solve for x
    x = 8,889,865,378.42/104,257.09
  6. Step 6: Final answer
    x = 85,268.69

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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.