Home / 190,830.19-263,335.38-105,941.78

Finding the Fourth Proportional to 190,830.19, 263,335.38 and 105,941.78

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Solution

The fourth proportional to 190,830.19, 263,335.38 and 105,941.78 is: 146,193.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,830.19 : 263,335.38 = 105,941.78 : x
  2. Step 2: Convert to fraction form
    190,830.19/263,335.38 = 105,941.78/x
  3. Step 3: Cross multiply
    190,830.19x = 263,335.38 × 105,941.78
  4. Step 4: Simplify right side
    190,830.19x = 27,898,219,024.70
  5. Step 5: Solve for x
    x = 27,898,219,024.70/190,830.19
  6. Step 6: Final answer
    x = 146,193.95

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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.