Home / 154,485.38-231,815.73-83,407.07

Finding the Fourth Proportional to 154,485.38, 231,815.73 and 83,407.07

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Solution

The fourth proportional to 154,485.38, 231,815.73 and 83,407.07 is: 125,157.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,485.38 : 231,815.73 = 83,407.07 : x
  2. Step 2: Convert to fraction form
    154,485.38/231,815.73 = 83,407.07/x
  3. Step 3: Cross multiply
    154,485.38x = 231,815.73 × 83,407.07
  4. Step 4: Simplify right side
    154,485.38x = 19,335,070,819.21
  5. Step 5: Solve for x
    x = 19,335,070,819.21/154,485.38
  6. Step 6: Final answer
    x = 125,157.93

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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.