Home / 145,884.06-218,738.58-66,899.34

Finding the Fourth Proportional to 145,884.06, 218,738.58 and 66,899.34

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Solution

The fourth proportional to 145,884.06, 218,738.58 and 66,899.34 is: 100,308.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,884.06 : 218,738.58 = 66,899.34 : x
  2. Step 2: Convert to fraction form
    145,884.06/218,738.58 = 66,899.34/x
  3. Step 3: Cross multiply
    145,884.06x = 218,738.58 × 66,899.34
  4. Step 4: Simplify right side
    145,884.06x = 14,633,466,634.54
  5. Step 5: Solve for x
    x = 14,633,466,634.54/145,884.06
  6. Step 6: Final answer
    x = 100,308.88

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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.