Home / 130,185.20-195,229.20-90,624.80

Finding the Fourth Proportional to 130,185.20, 195,229.20 and 90,624.80

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Solution

The fourth proportional to 130,185.20, 195,229.20 and 90,624.80 is: 135,903.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,185.20 : 195,229.20 = 90,624.80 : x
  2. Step 2: Convert to fraction form
    130,185.20/195,229.20 = 90,624.80/x
  3. Step 3: Cross multiply
    130,185.20x = 195,229.20 × 90,624.80
  4. Step 4: Simplify right side
    130,185.20x = 17,692,607,204.16
  5. Step 5: Solve for x
    x = 17,692,607,204.16/130,185.20
  6. Step 6: Final answer
    x = 135,903.37

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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.