Home / 120,546.23-166,357.80-72,790.04

Finding the Fourth Proportional to 120,546.23, 166,357.80 and 72,790.04

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Solution

The fourth proportional to 120,546.23, 166,357.80 and 72,790.04 is: 100,452.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,546.23 : 166,357.80 = 72,790.04 : x
  2. Step 2: Convert to fraction form
    120,546.23/166,357.80 = 72,790.04/x
  3. Step 3: Cross multiply
    120,546.23x = 166,357.80 × 72,790.04
  4. Step 4: Simplify right side
    120,546.23x = 12,109,191,332.21
  5. Step 5: Solve for x
    x = 12,109,191,332.21/120,546.23
  6. Step 6: Final answer
    x = 100,452.68

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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.