Home / 190,785.30-263,264.76-105,893.28

Finding the Fourth Proportional to 190,785.30, 263,264.76 and 105,893.28

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Solution

The fourth proportional to 190,785.30, 263,264.76 and 105,893.28 is: 146,122.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,785.30 : 263,264.76 = 105,893.28 : x
  2. Step 2: Convert to fraction form
    190,785.30/263,264.76 = 105,893.28/x
  3. Step 3: Cross multiply
    190,785.30x = 263,264.76 × 105,893.28
  4. Step 4: Simplify right side
    190,785.30x = 27,877,968,944.81
  5. Step 5: Solve for x
    x = 27,877,968,944.81/190,785.30
  6. Step 6: Final answer
    x = 146,122.21

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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.