Home / 138,824.01-208,017.85-107,311.32

Finding the Fourth Proportional to 138,824.01, 208,017.85 and 107,311.32

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Solution

The fourth proportional to 138,824.01, 208,017.85 and 107,311.32 is: 160,798.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,824.01 : 208,017.85 = 107,311.32 : x
  2. Step 2: Convert to fraction form
    138,824.01/208,017.85 = 107,311.32/x
  3. Step 3: Cross multiply
    138,824.01x = 208,017.85 × 107,311.32
  4. Step 4: Simplify right side
    138,824.01x = 22,322,670,067.06
  5. Step 5: Solve for x
    x = 22,322,670,067.06/138,824.01
  6. Step 6: Final answer
    x = 160,798.34

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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.