Home / 130,109.40-195,164.10-74,122.20

Finding the Fourth Proportional to 130,109.40, 195,164.10 and 74,122.20

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Solution

The fourth proportional to 130,109.40, 195,164.10 and 74,122.20 is: 111,183.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,109.40 : 195,164.10 = 74,122.20 : x
  2. Step 2: Convert to fraction form
    130,109.40/195,164.10 = 74,122.20/x
  3. Step 3: Cross multiply
    130,109.40x = 195,164.10 × 74,122.20
  4. Step 4: Simplify right side
    130,109.40x = 14,465,992,453.02
  5. Step 5: Solve for x
    x = 14,465,992,453.02/130,109.40
  6. Step 6: Final answer
    x = 111,183.30

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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.