Home / 190,205.86-262,480.88-105,321.10

Finding the Fourth Proportional to 190,205.86, 262,480.88 and 105,321.10

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Solution

The fourth proportional to 190,205.86, 262,480.88 and 105,321.10 is: 145,341.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,205.86 : 262,480.88 = 105,321.10 : x
  2. Step 2: Convert to fraction form
    190,205.86/262,480.88 = 105,321.10/x
  3. Step 3: Cross multiply
    190,205.86x = 262,480.88 × 105,321.10
  4. Step 4: Simplify right side
    190,205.86x = 27,644,775,010.57
  5. Step 5: Solve for x
    x = 27,644,775,010.57/190,205.86
  6. Step 6: Final answer
    x = 145,341.34

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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.