Home / 126,941.40-190,181.70-103,440.60

Finding the Fourth Proportional to 126,941.40, 190,181.70 and 103,440.60

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Solution

The fourth proportional to 126,941.40, 190,181.70 and 103,440.60 is: 154,973.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,941.40 : 190,181.70 = 103,440.60 : x
  2. Step 2: Convert to fraction form
    126,941.40/190,181.70 = 103,440.60/x
  3. Step 3: Cross multiply
    126,941.40x = 190,181.70 × 103,440.60
  4. Step 4: Simplify right side
    126,941.40x = 19,672,509,157.02
  5. Step 5: Solve for x
    x = 19,672,509,157.02/126,941.40
  6. Step 6: Final answer
    x = 154,973.15

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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.