Home / 190,105.79-262,411.58-109,565.42

Finding the Fourth Proportional to 190,105.79, 262,411.58 and 109,565.42

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Solution

The fourth proportional to 190,105.79, 262,411.58 and 109,565.42 is: 151,238.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,105.79 : 262,411.58 = 109,565.42 : x
  2. Step 2: Convert to fraction form
    190,105.79/262,411.58 = 109,565.42/x
  3. Step 3: Cross multiply
    190,105.79x = 262,411.58 × 109,565.42
  4. Step 4: Simplify right side
    190,105.79x = 28,751,234,427.74
  5. Step 5: Solve for x
    x = 28,751,234,427.74/190,105.79
  6. Step 6: Final answer
    x = 151,238.08

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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.