Home / 149,218.15-205,860.08-91,840.18

Finding the Fourth Proportional to 149,218.15, 205,860.08 and 91,840.18

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Solution

The fourth proportional to 149,218.15, 205,860.08 and 91,840.18 is: 126,701.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,218.15 : 205,860.08 = 91,840.18 : x
  2. Step 2: Convert to fraction form
    149,218.15/205,860.08 = 91,840.18/x
  3. Step 3: Cross multiply
    149,218.15x = 205,860.08 × 91,840.18
  4. Step 4: Simplify right side
    149,218.15x = 18,906,226,902.95
  5. Step 5: Solve for x
    x = 18,906,226,902.95/149,218.15
  6. Step 6: Final answer
    x = 126,701.93

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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.