Home / 190,542.96-262,936.80-105,657.12

Finding the Fourth Proportional to 190,542.96, 262,936.80 and 105,657.12

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Solution

The fourth proportional to 190,542.96, 262,936.80 and 105,657.12 is: 145,799.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,542.96 : 262,936.80 = 105,657.12 : x
  2. Step 2: Convert to fraction form
    190,542.96/262,936.80 = 105,657.12/x
  3. Step 3: Cross multiply
    190,542.96x = 262,936.80 × 105,657.12
  4. Step 4: Simplify right side
    190,542.96x = 27,781,145,030.02
  5. Step 5: Solve for x
    x = 27,781,145,030.02/190,542.96
  6. Step 6: Final answer
    x = 145,799.90

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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.