Home / 154,054.40-231,081.60-71,110.40

Finding the Fourth Proportional to 154,054.40, 231,081.60 and 71,110.40

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Solution

The fourth proportional to 154,054.40, 231,081.60 and 71,110.40 is: 106,665.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,054.40 : 231,081.60 = 71,110.40 : x
  2. Step 2: Convert to fraction form
    154,054.40/231,081.60 = 71,110.40/x
  3. Step 3: Cross multiply
    154,054.40x = 231,081.60 × 71,110.40
  4. Step 4: Simplify right side
    154,054.40x = 16,432,305,008.64
  5. Step 5: Solve for x
    x = 16,432,305,008.64/154,054.40
  6. Step 6: Final answer
    x = 106,665.60

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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.