Home / 190,521.36-262,902.24-105,638.22

Finding the Fourth Proportional to 190,521.36, 262,902.24 and 105,638.22

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Solution

The fourth proportional to 190,521.36, 262,902.24 and 105,638.22 is: 145,771.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,521.36 : 262,902.24 = 105,638.22 : x
  2. Step 2: Convert to fraction form
    190,521.36/262,902.24 = 105,638.22/x
  3. Step 3: Cross multiply
    190,521.36x = 262,902.24 × 105,638.22
  4. Step 4: Simplify right side
    190,521.36x = 27,772,524,667.61
  5. Step 5: Solve for x
    x = 27,772,524,667.61/190,521.36
  6. Step 6: Final answer
    x = 145,771.19

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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.