Home / 126,136.73-174,820.10-123,774.77

Finding the Fourth Proportional to 126,136.73, 174,820.10 and 123,774.77

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Solution

The fourth proportional to 126,136.73, 174,820.10 and 123,774.77 is: 171,546.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,136.73 : 174,820.10 = 123,774.77 : x
  2. Step 2: Convert to fraction form
    126,136.73/174,820.10 = 123,774.77/x
  3. Step 3: Cross multiply
    126,136.73x = 174,820.10 × 123,774.77
  4. Step 4: Simplify right side
    126,136.73x = 21,638,317,487.05
  5. Step 5: Solve for x
    x = 21,638,317,487.05/126,136.73
  6. Step 6: Final answer
    x = 171,546.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.