Home / 126,886.37-190,334.21-42,649.40

Finding the Fourth Proportional to 126,886.37, 190,334.21 and 42,649.40

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Solution

The fourth proportional to 126,886.37, 190,334.21 and 42,649.40 is: 63,975.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,886.37 : 190,334.21 = 42,649.40 : x
  2. Step 2: Convert to fraction form
    126,886.37/190,334.21 = 42,649.40/x
  3. Step 3: Cross multiply
    126,886.37x = 190,334.21 × 42,649.40
  4. Step 4: Simplify right side
    126,886.37x = 8,117,640,118.56
  5. Step 5: Solve for x
    x = 8,117,640,118.56/126,886.37
  6. Step 6: Final answer
    x = 63,975.67

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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.