Home / 122,202.45-168,638.99-71,245.35

Finding the Fourth Proportional to 122,202.45, 168,638.99 and 71,245.35

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Solution

The fourth proportional to 122,202.45, 168,638.99 and 71,245.35 is: 98,318.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,202.45 : 168,638.99 = 71,245.35 : x
  2. Step 2: Convert to fraction form
    122,202.45/168,638.99 = 71,245.35/x
  3. Step 3: Cross multiply
    122,202.45x = 168,638.99 × 71,245.35
  4. Step 4: Simplify right side
    122,202.45x = 12,014,743,866.20
  5. Step 5: Solve for x
    x = 12,014,743,866.20/122,202.45
  6. Step 6: Final answer
    x = 98,318.36

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1.5x scale

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.