Home / 190,669.48-263,122.50-105,786.88

Finding the Fourth Proportional to 190,669.48, 263,122.50 and 105,786.88

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Solution

The fourth proportional to 190,669.48, 263,122.50 and 105,786.88 is: 145,985.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,669.48 : 263,122.50 = 105,786.88 : x
  2. Step 2: Convert to fraction form
    190,669.48/263,122.50 = 105,786.88/x
  3. Step 3: Cross multiply
    190,669.48x = 263,122.50 × 105,786.88
  4. Step 4: Simplify right side
    190,669.48x = 27,834,908,332.80
  5. Step 5: Solve for x
    x = 27,834,908,332.80/190,669.48
  6. Step 6: Final answer
    x = 145,985.13

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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.