Home / 123,365.18-185,121.58-113,326.86

Finding the Fourth Proportional to 123,365.18, 185,121.58 and 113,326.86

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Solution

The fourth proportional to 123,365.18, 185,121.58 and 113,326.86 is: 170,058.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,365.18 : 185,121.58 = 113,326.86 : x
  2. Step 2: Convert to fraction form
    123,365.18/185,121.58 = 113,326.86/x
  3. Step 3: Cross multiply
    123,365.18x = 185,121.58 × 113,326.86
  4. Step 4: Simplify right side
    123,365.18x = 20,979,247,379.64
  5. Step 5: Solve for x
    x = 20,979,247,379.64/123,365.18
  6. Step 6: Final answer
    x = 170,058.09

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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.