Home / 191,040.80-263,639.04-105,007.74

Finding the Fourth Proportional to 191,040.80, 263,639.04 and 105,007.74

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Solution

The fourth proportional to 191,040.80, 263,639.04 and 105,007.74 is: 144,912.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,040.80 : 263,639.04 = 105,007.74 : x
  2. Step 2: Convert to fraction form
    191,040.80/263,639.04 = 105,007.74/x
  3. Step 3: Cross multiply
    191,040.80x = 263,639.04 × 105,007.74
  4. Step 4: Simplify right side
    191,040.80x = 27,684,137,922.94
  5. Step 5: Solve for x
    x = 27,684,137,922.94/191,040.80
  6. Step 6: Final answer
    x = 144,912.18

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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.