Home / 120,023.07-165,633.21-66,306.93

Finding the Fourth Proportional to 120,023.07, 165,633.21 and 66,306.93

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Solution

The fourth proportional to 120,023.07, 165,633.21 and 66,306.93 is: 91,504.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,023.07 : 165,633.21 = 66,306.93 : x
  2. Step 2: Convert to fraction form
    120,023.07/165,633.21 = 66,306.93/x
  3. Step 3: Cross multiply
    120,023.07x = 165,633.21 × 66,306.93
  4. Step 4: Simplify right side
    120,023.07x = 10,982,629,661.15
  5. Step 5: Solve for x
    x = 10,982,629,661.15/120,023.07
  6. Step 6: Final answer
    x = 91,504.32

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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.