Home / 190,778.18-263,260.72-105,888.56

Finding the Fourth Proportional to 190,778.18, 263,260.72 and 105,888.56

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Solution

The fourth proportional to 190,778.18, 263,260.72 and 105,888.56 is: 146,118.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,778.18 : 263,260.72 = 105,888.56 : x
  2. Step 2: Convert to fraction form
    190,778.18/263,260.72 = 105,888.56/x
  3. Step 3: Cross multiply
    190,778.18x = 263,260.72 × 105,888.56
  4. Step 4: Simplify right side
    190,778.18x = 27,876,298,938.79
  5. Step 5: Solve for x
    x = 27,876,298,938.79/190,778.18
  6. Step 6: Final answer
    x = 146,118.90

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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.