Home / 126,989.70-190,317.41-70,856.22

Finding the Fourth Proportional to 126,989.70, 190,317.41 and 70,856.22

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Solution

The fourth proportional to 126,989.70, 190,317.41 and 70,856.22 is: 106,191.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,989.70 : 190,317.41 = 70,856.22 : x
  2. Step 2: Convert to fraction form
    126,989.70/190,317.41 = 70,856.22/x
  3. Step 3: Cross multiply
    126,989.70x = 190,317.41 × 70,856.22
  4. Step 4: Simplify right side
    126,989.70x = 13,485,172,272.79
  5. Step 5: Solve for x
    x = 13,485,172,272.79/126,989.70
  6. Step 6: Final answer
    x = 106,191.07

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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.