Home / 149,987.55-225,043.86-65,808.22

Finding the Fourth Proportional to 149,987.55, 225,043.86 and 65,808.22

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Solution

The fourth proportional to 149,987.55, 225,043.86 and 65,808.22 is: 98,739.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,987.55 : 225,043.86 = 65,808.22 : x
  2. Step 2: Convert to fraction form
    149,987.55/225,043.86 = 65,808.22/x
  3. Step 3: Cross multiply
    149,987.55x = 225,043.86 × 65,808.22
  4. Step 4: Simplify right side
    149,987.55x = 14,809,734,723.31
  5. Step 5: Solve for x
    x = 14,809,734,723.31/149,987.55
  6. Step 6: Final answer
    x = 98,739.76

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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.