Home / 117,186.12-175,777.32-28,440.36

Finding the Fourth Proportional to 117,186.12, 175,777.32 and 28,440.36

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Solution

The fourth proportional to 117,186.12, 175,777.32 and 28,440.36 is: 42,660.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,186.12 : 175,777.32 = 28,440.36 : x
  2. Step 2: Convert to fraction form
    117,186.12/175,777.32 = 28,440.36/x
  3. Step 3: Cross multiply
    117,186.12x = 175,777.32 × 28,440.36
  4. Step 4: Simplify right side
    117,186.12x = 4,999,170,260.64
  5. Step 5: Solve for x
    x = 4,999,170,260.64/117,186.12
  6. Step 6: Final answer
    x = 42,660.09

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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.