Home / 149,199.15-205,848.48-91,778.25

Finding the Fourth Proportional to 149,199.15, 205,848.48 and 91,778.25

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Solution

The fourth proportional to 149,199.15, 205,848.48 and 91,778.25 is: 126,625.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,199.15 : 205,848.48 = 91,778.25 : x
  2. Step 2: Convert to fraction form
    149,199.15/205,848.48 = 91,778.25/x
  3. Step 3: Cross multiply
    149,199.15x = 205,848.48 × 91,778.25
  4. Step 4: Simplify right side
    149,199.15x = 18,892,413,259.56
  5. Step 5: Solve for x
    x = 18,892,413,259.56/149,199.15
  6. Step 6: Final answer
    x = 126,625.48

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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.