Home / 190,172.93-262,456.25-105,290.00

Finding the Fourth Proportional to 190,172.93, 262,456.25 and 105,290.00

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Solution

The fourth proportional to 190,172.93, 262,456.25 and 105,290.00 is: 145,309.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,172.93 : 262,456.25 = 105,290.00 : x
  2. Step 2: Convert to fraction form
    190,172.93/262,456.25 = 105,290.00/x
  3. Step 3: Cross multiply
    190,172.93x = 262,456.25 × 105,290.00
  4. Step 4: Simplify right side
    190,172.93x = 27,634,018,202.97
  5. Step 5: Solve for x
    x = 27,634,018,202.97/190,172.93
  6. Step 6: Final answer
    x = 145,309.94

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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.