Home / 130,010.40-195,015.60-122,137.20

Finding the Fourth Proportional to 130,010.40, 195,015.60 and 122,137.20

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Solution

The fourth proportional to 130,010.40, 195,015.60 and 122,137.20 is: 183,205.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,010.40 : 195,015.60 = 122,137.20 : x
  2. Step 2: Convert to fraction form
    130,010.40/195,015.60 = 122,137.20/x
  3. Step 3: Cross multiply
    130,010.40x = 195,015.60 × 122,137.20
  4. Step 4: Simplify right side
    130,010.40x = 23,818,659,340.32
  5. Step 5: Solve for x
    x = 23,818,659,340.32/130,010.40
  6. Step 6: Final answer
    x = 183,205.80

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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.