Home / 190,691.91-263,160.81-105,816.87

Finding the Fourth Proportional to 190,691.91, 263,160.81 and 105,816.87

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Solution

The fourth proportional to 190,691.91, 263,160.81 and 105,816.87 is: 146,030.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,691.91 : 263,160.81 = 105,816.87 : x
  2. Step 2: Convert to fraction form
    190,691.91/263,160.81 = 105,816.87/x
  3. Step 3: Cross multiply
    190,691.91x = 263,160.81 × 105,816.87
  4. Step 4: Simplify right side
    190,691.91x = 27,846,853,220.86
  5. Step 5: Solve for x
    x = 27,846,853,220.86/190,691.91
  6. Step 6: Final answer
    x = 146,030.60

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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.