Home / 126,881.45-190,184.84-82,539.89

Finding the Fourth Proportional to 126,881.45, 190,184.84 and 82,539.89

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Solution

The fourth proportional to 126,881.45, 190,184.84 and 82,539.89 is: 123,720.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,881.45 : 190,184.84 = 82,539.89 : x
  2. Step 2: Convert to fraction form
    126,881.45/190,184.84 = 82,539.89/x
  3. Step 3: Cross multiply
    126,881.45x = 190,184.84 × 82,539.89
  4. Step 4: Simplify right side
    126,881.45x = 15,697,835,360.57
  5. Step 5: Solve for x
    x = 15,697,835,360.57/126,881.45
  6. Step 6: Final answer
    x = 123,720.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.