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Finding the Fourth Proportional to 104,655.89, 144,805.44 and 91,255.07

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Solution

The fourth proportional to 104,655.89, 144,805.44 and 91,255.07 is: 126,263.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,655.89 : 144,805.44 = 91,255.07 : x
  2. Step 2: Convert to fraction form
    104,655.89/144,805.44 = 91,255.07/x
  3. Step 3: Cross multiply
    104,655.89x = 144,805.44 × 91,255.07
  4. Step 4: Simplify right side
    104,655.89x = 13,214,230,563.58
  5. Step 5: Solve for x
    x = 13,214,230,563.58/104,655.89
  6. Step 6: Final answer
    x = 126,263.61

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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.