Home / 126,881.40-190,091.70-103,380.60

Finding the Fourth Proportional to 126,881.40, 190,091.70 and 103,380.60

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Solution

The fourth proportional to 126,881.40, 190,091.70 and 103,380.60 is: 154,883.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,881.40 : 190,091.70 = 103,380.60 : x
  2. Step 2: Convert to fraction form
    126,881.40/190,091.70 = 103,380.60/x
  3. Step 3: Cross multiply
    126,881.40x = 190,091.70 × 103,380.60
  4. Step 4: Simplify right side
    126,881.40x = 19,651,794,001.02
  5. Step 5: Solve for x
    x = 19,651,794,001.02/126,881.40
  6. Step 6: Final answer
    x = 154,883.17

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1.5x scale

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.