Home / 168,109.61-252,027.00-78,208.36

Finding the Fourth Proportional to 168,109.61, 252,027.00 and 78,208.36

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Solution

The fourth proportional to 168,109.61, 252,027.00 and 78,208.36 is: 117,248.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,109.61 : 252,027.00 = 78,208.36 : x
  2. Step 2: Convert to fraction form
    168,109.61/252,027.00 = 78,208.36/x
  3. Step 3: Cross multiply
    168,109.61x = 252,027.00 × 78,208.36
  4. Step 4: Simplify right side
    168,109.61x = 19,710,618,351.16
  5. Step 5: Solve for x
    x = 19,710,618,351.16/168,109.61
  6. Step 6: Final answer
    x = 117,248.61

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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.