Home / 190,402.36-262,751.22-105,518.68

Finding the Fourth Proportional to 190,402.36, 262,751.22 and 105,518.68

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Solution

The fourth proportional to 190,402.36, 262,751.22 and 105,518.68 is: 145,613.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,402.36 : 262,751.22 = 105,518.68 : x
  2. Step 2: Convert to fraction form
    190,402.36/262,751.22 = 105,518.68/x
  3. Step 3: Cross multiply
    190,402.36x = 262,751.22 × 105,518.68
  4. Step 4: Simplify right side
    190,402.36x = 27,725,161,902.79
  5. Step 5: Solve for x
    x = 27,725,161,902.79/190,402.36
  6. Step 6: Final answer
    x = 145,613.54

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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.