Home / 190,830.90-263,336.36-105,942.50

Finding the Fourth Proportional to 190,830.90, 263,336.36 and 105,942.50

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Solution

The fourth proportional to 190,830.90, 263,336.36 and 105,942.50 is: 146,194.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,830.90 : 263,336.36 = 105,942.50 : x
  2. Step 2: Convert to fraction form
    190,830.90/263,336.36 = 105,942.50/x
  3. Step 3: Cross multiply
    190,830.90x = 263,336.36 × 105,942.50
  4. Step 4: Simplify right side
    190,830.90x = 27,898,510,472.91
  5. Step 5: Solve for x
    x = 27,898,510,472.91/190,830.90
  6. Step 6: Final answer
    x = 146,194.93

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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.