Home / 181,565.31-272,160.39-69,215.37

Finding the Fourth Proportional to 181,565.31, 272,160.39 and 69,215.37

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Solution

The fourth proportional to 181,565.31, 272,160.39 and 69,215.37 is: 103,751.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,565.31 : 272,160.39 = 69,215.37 : x
  2. Step 2: Convert to fraction form
    181,565.31/272,160.39 = 69,215.37/x
  3. Step 3: Cross multiply
    181,565.31x = 272,160.39 × 69,215.37
  4. Step 4: Simplify right side
    181,565.31x = 18,837,682,093.19
  5. Step 5: Solve for x
    x = 18,837,682,093.19/181,565.31
  6. Step 6: Final answer
    x = 103,751.55

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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.