Home / 190,557.64-262,963.20-105,680.98

Finding the Fourth Proportional to 190,557.64, 262,963.20 and 105,680.98

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Solution

The fourth proportional to 190,557.64, 262,963.20 and 105,680.98 is: 145,836.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,557.64 : 262,963.20 = 105,680.98 : x
  2. Step 2: Convert to fraction form
    190,557.64/262,963.20 = 105,680.98/x
  3. Step 3: Cross multiply
    190,557.64x = 262,963.20 × 105,680.98
  4. Step 4: Simplify right side
    190,557.64x = 27,790,208,679.94
  5. Step 5: Solve for x
    x = 27,790,208,679.94/190,557.64
  6. Step 6: Final answer
    x = 145,836.23

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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.