Home / 78,117.23-117,181.92-25,532.03

Finding the Fourth Proportional to 78,117.23, 117,181.92 and 25,532.03

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Solution

The fourth proportional to 78,117.23, 117,181.92 and 25,532.03 is: 38,300.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,117.23 : 117,181.92 = 25,532.03 : x
  2. Step 2: Convert to fraction form
    78,117.23/117,181.92 = 25,532.03/x
  3. Step 3: Cross multiply
    78,117.23x = 117,181.92 × 25,532.03
  4. Step 4: Simplify right side
    78,117.23x = 2,991,892,054.68
  5. Step 5: Solve for x
    x = 2,991,892,054.68/78,117.23
  6. Step 6: Final answer
    x = 38,300.03

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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.