Home / 185,969.36-256,629.44-105,392.16

Finding the Fourth Proportional to 185,969.36, 256,629.44 and 105,392.16

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Solution

The fourth proportional to 185,969.36, 256,629.44 and 105,392.16 is: 145,436.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,969.36 : 256,629.44 = 105,392.16 : x
  2. Step 2: Convert to fraction form
    185,969.36/256,629.44 = 105,392.16/x
  3. Step 3: Cross multiply
    185,969.36x = 256,629.44 × 105,392.16
  4. Step 4: Simplify right side
    185,969.36x = 27,046,731,001.19
  5. Step 5: Solve for x
    x = 27,046,731,001.19/185,969.36
  6. Step 6: Final answer
    x = 145,436.49

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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.