Home / 145,954.20-218,761.20-67,076.40

Finding the Fourth Proportional to 145,954.20, 218,761.20 and 67,076.40

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Solution

The fourth proportional to 145,954.20, 218,761.20 and 67,076.40 is: 100,536.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,954.20 : 218,761.20 = 67,076.40 : x
  2. Step 2: Convert to fraction form
    145,954.20/218,761.20 = 67,076.40/x
  3. Step 3: Cross multiply
    145,954.20x = 218,761.20 × 67,076.40
  4. Step 4: Simplify right side
    145,954.20x = 14,673,713,755.68
  5. Step 5: Solve for x
    x = 14,673,713,755.68/145,954.20
  6. Step 6: Final answer
    x = 100,536.43

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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.