Home / 205,842.16-309,046.59-104,708.68

Finding the Fourth Proportional to 205,842.16, 309,046.59 and 104,708.68

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Solution

The fourth proportional to 205,842.16, 309,046.59 and 104,708.68 is: 157,207.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,842.16 : 309,046.59 = 104,708.68 : x
  2. Step 2: Convert to fraction form
    205,842.16/309,046.59 = 104,708.68/x
  3. Step 3: Cross multiply
    205,842.16x = 309,046.59 × 104,708.68
  4. Step 4: Simplify right side
    205,842.16x = 32,359,860,497.40
  5. Step 5: Solve for x
    x = 32,359,860,497.40/205,842.16
  6. Step 6: Final answer
    x = 157,207.16

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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.