Home / 145,945.20-218,747.70-67,067.40

Finding the Fourth Proportional to 145,945.20, 218,747.70 and 67,067.40

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Solution

The fourth proportional to 145,945.20, 218,747.70 and 67,067.40 is: 100,522.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,945.20 : 218,747.70 = 67,067.40 : x
  2. Step 2: Convert to fraction form
    145,945.20/218,747.70 = 67,067.40/x
  3. Step 3: Cross multiply
    145,945.20x = 218,747.70 × 67,067.40
  4. Step 4: Simplify right side
    145,945.20x = 14,670,839,494.98
  5. Step 5: Solve for x
    x = 14,670,839,494.98/145,945.20
  6. Step 6: Final answer
    x = 100,522.93

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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.