Home / 125,723.60-188,585.40-120,885.20

Finding the Fourth Proportional to 125,723.60, 188,585.40 and 120,885.20

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Solution

The fourth proportional to 125,723.60, 188,585.40 and 120,885.20 is: 181,327.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,723.60 : 188,585.40 = 120,885.20 : x
  2. Step 2: Convert to fraction form
    125,723.60/188,585.40 = 120,885.20/x
  3. Step 3: Cross multiply
    125,723.60x = 188,585.40 × 120,885.20
  4. Step 4: Simplify right side
    125,723.60x = 22,797,183,796.08
  5. Step 5: Solve for x
    x = 22,797,183,796.08/125,723.60
  6. Step 6: Final answer
    x = 181,327.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.