Home / 190,256.28-262,555.40-105,375

Finding the Fourth Proportional to 190,256.28, 262,555.40 and 105,375

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Solution

The fourth proportional to 190,256.28, 262,555.40 and 105,375 is: 145,418.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,256.28 : 262,555.40 = 105,375 : x
  2. Step 2: Convert to fraction form
    190,256.28/262,555.40 = 105,375/x
  3. Step 3: Cross multiply
    190,256.28x = 262,555.40 × 105,375
  4. Step 4: Simplify right side
    190,256.28x = 27,666,775,275.00
  5. Step 5: Solve for x
    x = 27,666,775,275.00/190,256.28
  6. Step 6: Final answer
    x = 145,418.46

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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.