Home / 120,507.12-166,301.04-66,793.32

Finding the Fourth Proportional to 120,507.12, 166,301.04 and 66,793.32

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Solution

The fourth proportional to 120,507.12, 166,301.04 and 66,793.32 is: 92,175.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,507.12 : 166,301.04 = 66,793.32 : x
  2. Step 2: Convert to fraction form
    120,507.12/166,301.04 = 66,793.32/x
  3. Step 3: Cross multiply
    120,507.12x = 166,301.04 × 66,793.32
  4. Step 4: Simplify right side
    120,507.12x = 11,107,798,581.05
  5. Step 5: Solve for x
    x = 11,107,798,581.05/120,507.12
  6. Step 6: Final answer
    x = 92,175.45

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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.