Home / 130,225.20-195,030.60-80,458.80

Finding the Fourth Proportional to 130,225.20, 195,030.60 and 80,458.80

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Solution

The fourth proportional to 130,225.20, 195,030.60 and 80,458.80 is: 120,498.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,225.20 : 195,030.60 = 80,458.80 : x
  2. Step 2: Convert to fraction form
    130,225.20/195,030.60 = 80,458.80/x
  3. Step 3: Cross multiply
    130,225.20x = 195,030.60 × 80,458.80
  4. Step 4: Simplify right side
    130,225.20x = 15,691,928,039.28
  5. Step 5: Solve for x
    x = 15,691,928,039.28/130,225.20
  6. Step 6: Final answer
    x = 120,498.40

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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.