Home / 259,668.12-389,552.68-99,732.35

Finding the Fourth Proportional to 259,668.12, 389,552.68 and 99,732.35

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Solution

The fourth proportional to 259,668.12, 389,552.68 and 99,732.35 is: 149,617.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,668.12 : 389,552.68 = 99,732.35 : x
  2. Step 2: Convert to fraction form
    259,668.12/389,552.68 = 99,732.35/x
  3. Step 3: Cross multiply
    259,668.12x = 389,552.68 × 99,732.35
  4. Step 4: Simplify right side
    259,668.12x = 38,851,004,762.75
  5. Step 5: Solve for x
    x = 38,851,004,762.75/259,668.12
  6. Step 6: Final answer
    x = 149,617.92

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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.