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Finding the Fourth Proportional to 170,004, 255,005.88 and 80,987.76

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Solution

The fourth proportional to 170,004, 255,005.88 and 80,987.76 is: 121,481.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,004 : 255,005.88 = 80,987.76 : x
  2. Step 2: Convert to fraction form
    170,004/255,005.88 = 80,987.76/x
  3. Step 3: Cross multiply
    170,004x = 255,005.88 × 80,987.76
  4. Step 4: Simplify right side
    170,004x = 20,652,355,008.03
  5. Step 5: Solve for x
    x = 20,652,355,008.03/170,004
  6. Step 6: Final answer
    x = 121,481.58

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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.