Home / 126,989.70-190,317.40-70,856.23

Finding the Fourth Proportional to 126,989.70, 190,317.40 and 70,856.23

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Solution

The fourth proportional to 126,989.70, 190,317.40 and 70,856.23 is: 106,191.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,989.70 : 190,317.40 = 70,856.23 : x
  2. Step 2: Convert to fraction form
    126,989.70/190,317.40 = 70,856.23/x
  3. Step 3: Cross multiply
    126,989.70x = 190,317.40 × 70,856.23
  4. Step 4: Simplify right side
    126,989.70x = 13,485,173,467.40
  5. Step 5: Solve for x
    x = 13,485,173,467.40/126,989.70
  6. Step 6: Final answer
    x = 106,191.08

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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.