Home / 123,027.40-168,670.55-120,785.39

Finding the Fourth Proportional to 123,027.40, 168,670.55 and 120,785.39

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Solution

The fourth proportional to 123,027.40, 168,670.55 and 120,785.39 is: 165,596.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,027.40 : 168,670.55 = 120,785.39 : x
  2. Step 2: Convert to fraction form
    123,027.40/168,670.55 = 120,785.39/x
  3. Step 3: Cross multiply
    123,027.40x = 168,670.55 × 120,785.39
  4. Step 4: Simplify right side
    123,027.40x = 20,372,937,319.91
  5. Step 5: Solve for x
    x = 20,372,937,319.91/123,027.40
  6. Step 6: Final answer
    x = 165,596.75

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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.