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Finding the Fourth Proportional to 188,999.68, 260,819.50 and 104,116.72

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Solution

The fourth proportional to 188,999.68, 260,819.50 and 104,116.72 is: 143,681.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,999.68 : 260,819.50 = 104,116.72 : x
  2. Step 2: Convert to fraction form
    188,999.68/260,819.50 = 104,116.72/x
  3. Step 3: Cross multiply
    188,999.68x = 260,819.50 × 104,116.72
  4. Step 4: Simplify right side
    188,999.68x = 27,155,670,852.04
  5. Step 5: Solve for x
    x = 27,155,670,852.04/188,999.68
  6. Step 6: Final answer
    x = 143,681.04

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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.