Home / 172,890.18-259,209.30-116,590.43

Finding the Fourth Proportional to 172,890.18, 259,209.30 and 116,590.43

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Solution

The fourth proportional to 172,890.18, 259,209.30 and 116,590.43 is: 174,800.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,890.18 : 259,209.30 = 116,590.43 : x
  2. Step 2: Convert to fraction form
    172,890.18/259,209.30 = 116,590.43/x
  3. Step 3: Cross multiply
    172,890.18x = 259,209.30 × 116,590.43
  4. Step 4: Simplify right side
    172,890.18x = 30,221,323,747.00
  5. Step 5: Solve for x
    x = 30,221,323,747.00/172,890.18
  6. Step 6: Final answer
    x = 174,800.70

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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.