Home / 152,170.81-228,069.25-85,470.73

Finding the Fourth Proportional to 152,170.81, 228,069.25 and 85,470.73

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Solution

The fourth proportional to 152,170.81, 228,069.25 and 85,470.73 is: 128,101.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,170.81 : 228,069.25 = 85,470.73 : x
  2. Step 2: Convert to fraction form
    152,170.81/228,069.25 = 85,470.73/x
  3. Step 3: Cross multiply
    152,170.81x = 228,069.25 × 85,470.73
  4. Step 4: Simplify right side
    152,170.81x = 19,493,245,288.05
  5. Step 5: Solve for x
    x = 19,493,245,288.05/152,170.81
  6. Step 6: Final answer
    x = 128,101.08

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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.