Home / 130,080.20-195,266.10-100,628.60

Finding the Fourth Proportional to 130,080.20, 195,266.10 and 100,628.60

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Solution

The fourth proportional to 130,080.20, 195,266.10 and 100,628.60 is: 151,055.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,080.20 : 195,266.10 = 100,628.60 : x
  2. Step 2: Convert to fraction form
    130,080.20/195,266.10 = 100,628.60/x
  3. Step 3: Cross multiply
    130,080.20x = 195,266.10 × 100,628.60
  4. Step 4: Simplify right side
    130,080.20x = 19,649,354,270.46
  5. Step 5: Solve for x
    x = 19,649,354,270.46/130,080.20
  6. Step 6: Final answer
    x = 151,055.69

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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.