Home / 188,971.22-260,780.65-102,929.94

Finding the Fourth Proportional to 188,971.22, 260,780.65 and 102,929.94

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Solution

The fourth proportional to 188,971.22, 260,780.65 and 102,929.94 is: 142,043.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,971.22 : 260,780.65 = 102,929.94 : x
  2. Step 2: Convert to fraction form
    188,971.22/260,780.65 = 102,929.94/x
  3. Step 3: Cross multiply
    188,971.22x = 260,780.65 × 102,929.94
  4. Step 4: Simplify right side
    188,971.22x = 26,842,136,657.66
  5. Step 5: Solve for x
    x = 26,842,136,657.66/188,971.22
  6. Step 6: Final answer
    x = 142,043.52

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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.