Home / 190,411.75-262,768.23-105,534.28

Finding the Fourth Proportional to 190,411.75, 262,768.23 and 105,534.28

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Solution

The fourth proportional to 190,411.75, 262,768.23 and 105,534.28 is: 145,637.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,411.75 : 262,768.23 = 105,534.28 : x
  2. Step 2: Convert to fraction form
    190,411.75/262,768.23 = 105,534.28/x
  3. Step 3: Cross multiply
    190,411.75x = 262,768.23 × 105,534.28
  4. Step 4: Simplify right side
    190,411.75x = 27,731,055,959.92
  5. Step 5: Solve for x
    x = 27,731,055,959.92/190,411.75
  6. Step 6: Final answer
    x = 145,637.31

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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.