Home / 123,742.80-185,617.08-30,249.36

Finding the Fourth Proportional to 123,742.80, 185,617.08 and 30,249.36

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Solution

The fourth proportional to 123,742.80, 185,617.08 and 30,249.36 is: 45,374.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,742.80 : 185,617.08 = 30,249.36 : x
  2. Step 2: Convert to fraction form
    123,742.80/185,617.08 = 30,249.36/x
  3. Step 3: Cross multiply
    123,742.80x = 185,617.08 × 30,249.36
  4. Step 4: Simplify right side
    123,742.80x = 5,614,797,875.07
  5. Step 5: Solve for x
    x = 5,614,797,875.07/123,742.80
  6. Step 6: Final answer
    x = 45,374.74

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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.