Home / 126,852.20-190,140.96-82,510.64

Finding the Fourth Proportional to 126,852.20, 190,140.96 and 82,510.64

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Solution

The fourth proportional to 126,852.20, 190,140.96 and 82,510.64 is: 123,676.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,852.20 : 190,140.96 = 82,510.64 : x
  2. Step 2: Convert to fraction form
    126,852.20/190,140.96 = 82,510.64/x
  3. Step 3: Cross multiply
    126,852.20x = 190,140.96 × 82,510.64
  4. Step 4: Simplify right side
    126,852.20x = 15,688,652,299.81
  5. Step 5: Solve for x
    x = 15,688,652,299.81/126,852.20
  6. Step 6: Final answer
    x = 123,676.63

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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.