Home / 190,091.57-262,334.63-105,208.61

Finding the Fourth Proportional to 190,091.57, 262,334.63 and 105,208.61

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Solution

The fourth proportional to 190,091.57, 262,334.63 and 105,208.61 is: 145,192.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,091.57 : 262,334.63 = 105,208.61 : x
  2. Step 2: Convert to fraction form
    190,091.57/262,334.63 = 105,208.61/x
  3. Step 3: Cross multiply
    190,091.57x = 262,334.63 × 105,208.61
  4. Step 4: Simplify right side
    190,091.57x = 27,599,860,728.51
  5. Step 5: Solve for x
    x = 27,599,860,728.51/190,091.57
  6. Step 6: Final answer
    x = 145,192.45

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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.