Home / 130,147.80-195,221.70-36,653.55

Finding the Fourth Proportional to 130,147.80, 195,221.70 and 36,653.55

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Solution

The fourth proportional to 130,147.80, 195,221.70 and 36,653.55 is: 54,980.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,147.80 : 195,221.70 = 36,653.55 : x
  2. Step 2: Convert to fraction form
    130,147.80/195,221.70 = 36,653.55/x
  3. Step 3: Cross multiply
    130,147.80x = 195,221.70 × 36,653.55
  4. Step 4: Simplify right side
    130,147.80x = 7,155,568,342.04
  5. Step 5: Solve for x
    x = 7,155,568,342.04/130,147.80
  6. Step 6: Final answer
    x = 54,980.33

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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.