Home / 188,021.79-259,379.19-123,465.83

Finding the Fourth Proportional to 188,021.79, 259,379.19 and 123,465.83

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Solution

The fourth proportional to 188,021.79, 259,379.19 and 123,465.83 is: 170,323.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,021.79 : 259,379.19 = 123,465.83 : x
  2. Step 2: Convert to fraction form
    188,021.79/259,379.19 = 123,465.83/x
  3. Step 3: Cross multiply
    188,021.79x = 259,379.19 × 123,465.83
  4. Step 4: Simplify right side
    188,021.79x = 32,024,465,681.18
  5. Step 5: Solve for x
    x = 32,024,465,681.18/188,021.79
  6. Step 6: Final answer
    x = 170,323.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.