Home / 120,356.13-166,094.06-65,910.60

Finding the Fourth Proportional to 120,356.13, 166,094.06 and 65,910.60

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Solution

The fourth proportional to 120,356.13, 166,094.06 and 65,910.60 is: 90,958.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,356.13 : 166,094.06 = 65,910.60 : x
  2. Step 2: Convert to fraction form
    120,356.13/166,094.06 = 65,910.60/x
  3. Step 3: Cross multiply
    120,356.13x = 166,094.06 × 65,910.60
  4. Step 4: Simplify right side
    120,356.13x = 10,947,358,821.48
  5. Step 5: Solve for x
    x = 10,947,358,821.48/120,356.13
  6. Step 6: Final answer
    x = 90,958.05

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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.