Home / 135,693.21-203,540.34-56,752.07

Finding the Fourth Proportional to 135,693.21, 203,540.34 and 56,752.07

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Solution

The fourth proportional to 135,693.21, 203,540.34 and 56,752.07 is: 85,128.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,693.21 : 203,540.34 = 56,752.07 : x
  2. Step 2: Convert to fraction form
    135,693.21/203,540.34 = 56,752.07/x
  3. Step 3: Cross multiply
    135,693.21x = 203,540.34 × 56,752.07
  4. Step 4: Simplify right side
    135,693.21x = 11,551,334,605.80
  5. Step 5: Solve for x
    x = 11,551,334,605.80/135,693.21
  6. Step 6: Final answer
    x = 85,128.32

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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.