Home / 135,457.58-203,187.05-55,539.20

Finding the Fourth Proportional to 135,457.58, 203,187.05 and 55,539.20

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Solution

The fourth proportional to 135,457.58, 203,187.05 and 55,539.20 is: 83,309.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,457.58 : 203,187.05 = 55,539.20 : x
  2. Step 2: Convert to fraction form
    135,457.58/203,187.05 = 55,539.20/x
  3. Step 3: Cross multiply
    135,457.58x = 203,187.05 × 55,539.20
  4. Step 4: Simplify right side
    135,457.58x = 11,284,846,207.36
  5. Step 5: Solve for x
    x = 11,284,846,207.36/135,457.58
  6. Step 6: Final answer
    x = 83,309.08

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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.