Home / 104,428.20-156,642.30-51,940.20

Finding the Fourth Proportional to 104,428.20, 156,642.30 and 51,940.20

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Solution

The fourth proportional to 104,428.20, 156,642.30 and 51,940.20 is: 77,910.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,428.20 : 156,642.30 = 51,940.20 : x
  2. Step 2: Convert to fraction form
    104,428.20/156,642.30 = 51,940.20/x
  3. Step 3: Cross multiply
    104,428.20x = 156,642.30 × 51,940.20
  4. Step 4: Simplify right side
    104,428.20x = 8,136,032,390.46
  5. Step 5: Solve for x
    x = 8,136,032,390.46/104,428.20
  6. Step 6: Final answer
    x = 77,910.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.