Home / 259,664.45-389,671.23-91,186.07

Finding the Fourth Proportional to 259,664.45, 389,671.23 and 91,186.07

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Solution

The fourth proportional to 259,664.45, 389,671.23 and 91,186.07 is: 136,840.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,664.45 : 389,671.23 = 91,186.07 : x
  2. Step 2: Convert to fraction form
    259,664.45/389,671.23 = 91,186.07/x
  3. Step 3: Cross multiply
    259,664.45x = 389,671.23 × 91,186.07
  4. Step 4: Simplify right side
    259,664.45x = 35,532,588,055.77
  5. Step 5: Solve for x
    x = 35,532,588,055.77/259,664.45
  6. Step 6: Final answer
    x = 136,840.40

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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.