Home / 104,286.72-143,915.22-56,539.92

Finding the Fourth Proportional to 104,286.72, 143,915.22 and 56,539.92

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Solution

The fourth proportional to 104,286.72, 143,915.22 and 56,539.92 is: 78,024.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,286.72 : 143,915.22 = 56,539.92 : x
  2. Step 2: Convert to fraction form
    104,286.72/143,915.22 = 56,539.92/x
  3. Step 3: Cross multiply
    104,286.72x = 143,915.22 × 56,539.92
  4. Step 4: Simplify right side
    104,286.72x = 8,136,955,025.58
  5. Step 5: Solve for x
    x = 8,136,955,025.58/104,286.72
  6. Step 6: Final answer
    x = 78,024.84

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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.