Home / 130,179.86-194,404.66-128,770.73

Finding the Fourth Proportional to 130,179.86, 194,404.66 and 128,770.73

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Solution

The fourth proportional to 130,179.86, 194,404.66 and 128,770.73 is: 192,300.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,179.86 : 194,404.66 = 128,770.73 : x
  2. Step 2: Convert to fraction form
    130,179.86/194,404.66 = 128,770.73/x
  3. Step 3: Cross multiply
    130,179.86x = 194,404.66 × 128,770.73
  4. Step 4: Simplify right side
    130,179.86x = 25,033,628,367.72
  5. Step 5: Solve for x
    x = 25,033,628,367.72/130,179.86
  6. Step 6: Final answer
    x = 192,300.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.