Home / 190,637.58-263,111.37-105,781.98

Finding the Fourth Proportional to 190,637.58, 263,111.37 and 105,781.98

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Solution

The fourth proportional to 190,637.58, 263,111.37 and 105,781.98 is: 145,996.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,637.58 : 263,111.37 = 105,781.98 : x
  2. Step 2: Convert to fraction form
    190,637.58/263,111.37 = 105,781.98/x
  3. Step 3: Cross multiply
    190,637.58x = 263,111.37 × 105,781.98
  4. Step 4: Simplify right side
    190,637.58x = 27,832,441,679.11
  5. Step 5: Solve for x
    x = 27,832,441,679.11/190,637.58
  6. Step 6: Final answer
    x = 145,996.62

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1.5x scale

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.