Home / 123,027.21-168,670.28-120,785.19

Finding the Fourth Proportional to 123,027.21, 168,670.28 and 120,785.19

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Solution

The fourth proportional to 123,027.21, 168,670.28 and 120,785.19 is: 165,596.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,027.21 : 168,670.28 = 120,785.19 : x
  2. Step 2: Convert to fraction form
    123,027.21/168,670.28 = 120,785.19/x
  3. Step 3: Cross multiply
    123,027.21x = 168,670.28 × 120,785.19
  4. Step 4: Simplify right side
    123,027.21x = 20,372,872,119.12
  5. Step 5: Solve for x
    x = 20,372,872,119.12/123,027.21
  6. Step 6: Final answer
    x = 165,596.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.