Home / 130,137.69-195,112.22-87,912.19

Finding the Fourth Proportional to 130,137.69, 195,112.22 and 87,912.19

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Solution

The fourth proportional to 130,137.69, 195,112.22 and 87,912.19 is: 131,804.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,137.69 : 195,112.22 = 87,912.19 : x
  2. Step 2: Convert to fraction form
    130,137.69/195,112.22 = 87,912.19/x
  3. Step 3: Cross multiply
    130,137.69x = 195,112.22 × 87,912.19
  4. Step 4: Simplify right side
    130,137.69x = 17,152,741,510.04
  5. Step 5: Solve for x
    x = 17,152,741,510.04/130,137.69
  6. Step 6: Final answer
    x = 131,804.57

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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.