Home / 122,187.45-168,615.90-71,197

Finding the Fourth Proportional to 122,187.45, 168,615.90 and 71,197

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Solution

The fourth proportional to 122,187.45, 168,615.90 and 71,197 is: 98,250.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,187.45 : 168,615.90 = 71,197 : x
  2. Step 2: Convert to fraction form
    122,187.45/168,615.90 = 71,197/x
  3. Step 3: Cross multiply
    122,187.45x = 168,615.90 × 71,197
  4. Step 4: Simplify right side
    122,187.45x = 12,004,946,232.30
  5. Step 5: Solve for x
    x = 12,004,946,232.30/122,187.45
  6. Step 6: Final answer
    x = 98,250.24

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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.