Home / 190,203.96-262,478.26-105,319.20

Finding the Fourth Proportional to 190,203.96, 262,478.26 and 105,319.20

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Solution

The fourth proportional to 190,203.96, 262,478.26 and 105,319.20 is: 145,338.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,203.96 : 262,478.26 = 105,319.20 : x
  2. Step 2: Convert to fraction form
    190,203.96/262,478.26 = 105,319.20/x
  3. Step 3: Cross multiply
    190,203.96x = 262,478.26 × 105,319.20
  4. Step 4: Simplify right side
    190,203.96x = 27,644,000,360.59
  5. Step 5: Solve for x
    x = 27,644,000,360.59/190,203.96
  6. Step 6: Final answer
    x = 145,338.72

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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.