Home / 192,890.38-266,145.66-116,421.88

Finding the Fourth Proportional to 192,890.38, 266,145.66 and 116,421.88

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Solution

The fourth proportional to 192,890.38, 266,145.66 and 116,421.88 is: 160,636.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,890.38 : 266,145.66 = 116,421.88 : x
  2. Step 2: Convert to fraction form
    192,890.38/266,145.66 = 116,421.88/x
  3. Step 3: Cross multiply
    192,890.38x = 266,145.66 × 116,421.88
  4. Step 4: Simplify right side
    192,890.38x = 30,985,178,091.04
  5. Step 5: Solve for x
    x = 30,985,178,091.04/192,890.38
  6. Step 6: Final answer
    x = 160,636.20

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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.