Home / 130,171.63-195,182.71-51,242.80

Finding the Fourth Proportional to 130,171.63, 195,182.71 and 51,242.80

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Solution

The fourth proportional to 130,171.63, 195,182.71 and 51,242.80 is: 76,834.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,171.63 : 195,182.71 = 51,242.80 : x
  2. Step 2: Convert to fraction form
    130,171.63/195,182.71 = 51,242.80/x
  3. Step 3: Cross multiply
    130,171.63x = 195,182.71 × 51,242.80
  4. Step 4: Simplify right side
    130,171.63x = 10,001,708,571.99
  5. Step 5: Solve for x
    x = 10,001,708,571.99/130,171.63
  6. Step 6: Final answer
    x = 76,834.78

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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.