Home / 190,669.77-263,124.32-105,786.63

Finding the Fourth Proportional to 190,669.77, 263,124.32 and 105,786.63

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Solution

The fourth proportional to 190,669.77, 263,124.32 and 105,786.63 is: 145,985.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,669.77 : 263,124.32 = 105,786.63 : x
  2. Step 2: Convert to fraction form
    190,669.77/263,124.32 = 105,786.63/x
  3. Step 3: Cross multiply
    190,669.77x = 263,124.32 × 105,786.63
  4. Step 4: Simplify right side
    190,669.77x = 27,835,034,554.91
  5. Step 5: Solve for x
    x = 27,835,034,554.91/190,669.77
  6. Step 6: Final answer
    x = 145,985.57

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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.