Home / 117,973.21-162,838.61-80,269.33

Finding the Fourth Proportional to 117,973.21, 162,838.61 and 80,269.33

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Solution

The fourth proportional to 117,973.21, 162,838.61 and 80,269.33 is: 110,795.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,973.21 : 162,838.61 = 80,269.33 : x
  2. Step 2: Convert to fraction form
    117,973.21/162,838.61 = 80,269.33/x
  3. Step 3: Cross multiply
    117,973.21x = 162,838.61 × 80,269.33
  4. Step 4: Simplify right side
    117,973.21x = 13,070,946,122.83
  5. Step 5: Solve for x
    x = 13,070,946,122.83/117,973.21
  6. Step 6: Final answer
    x = 110,795.88

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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.