Home / 172,823.40-259,235.10-102,666.60

Finding the Fourth Proportional to 172,823.40, 259,235.10 and 102,666.60

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Solution

The fourth proportional to 172,823.40, 259,235.10 and 102,666.60 is: 153,999.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,823.40 : 259,235.10 = 102,666.60 : x
  2. Step 2: Convert to fraction form
    172,823.40/259,235.10 = 102,666.60/x
  3. Step 3: Cross multiply
    172,823.40x = 259,235.10 × 102,666.60
  4. Step 4: Simplify right side
    172,823.40x = 26,614,786,317.66
  5. Step 5: Solve for x
    x = 26,614,786,317.66/172,823.40
  6. Step 6: Final answer
    x = 153,999.90

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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.