Home / 190,112.86-262,355.52-109,543.78

Finding the Fourth Proportional to 190,112.86, 262,355.52 and 109,543.78

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Solution

The fourth proportional to 190,112.86, 262,355.52 and 109,543.78 is: 151,170.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,112.86 : 262,355.52 = 109,543.78 : x
  2. Step 2: Convert to fraction form
    190,112.86/262,355.52 = 109,543.78/x
  3. Step 3: Cross multiply
    190,112.86x = 262,355.52 × 109,543.78
  4. Step 4: Simplify right side
    190,112.86x = 28,739,415,364.67
  5. Step 5: Solve for x
    x = 28,739,415,364.67/190,112.86
  6. Step 6: Final answer
    x = 151,170.29

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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.