Home / 190,673.90-263,130.02-105,790.76

Finding the Fourth Proportional to 190,673.90, 263,130.02 and 105,790.76

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Solution

The fourth proportional to 190,673.90, 263,130.02 and 105,790.76 is: 145,991.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,673.90 : 263,130.02 = 105,790.76 : x
  2. Step 2: Convert to fraction form
    190,673.90/263,130.02 = 105,790.76/x
  3. Step 3: Cross multiply
    190,673.90x = 263,130.02 × 105,790.76
  4. Step 4: Simplify right side
    190,673.90x = 27,836,722,950.01
  5. Step 5: Solve for x
    x = 27,836,722,950.01/190,673.90
  6. Step 6: Final answer
    x = 145,991.26

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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.