Home / 104,286.79-143,915.84-56,540.33

Finding the Fourth Proportional to 104,286.79, 143,915.84 and 56,540.33

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Solution

The fourth proportional to 104,286.79, 143,915.84 and 56,540.33 is: 78,025.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,286.79 : 143,915.84 = 56,540.33 : x
  2. Step 2: Convert to fraction form
    104,286.79/143,915.84 = 56,540.33/x
  3. Step 3: Cross multiply
    104,286.79x = 143,915.84 × 56,540.33
  4. Step 4: Simplify right side
    104,286.79x = 8,137,048,835.26
  5. Step 5: Solve for x
    x = 8,137,048,835.26/104,286.79
  6. Step 6: Final answer
    x = 78,025.69

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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.