Home / 102,067.12-140,840.31-56,739.29

Finding the Fourth Proportional to 102,067.12, 140,840.31 and 56,739.29

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Solution

The fourth proportional to 102,067.12, 140,840.31 and 56,739.29 is: 78,293.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,067.12 : 140,840.31 = 56,739.29 : x
  2. Step 2: Convert to fraction form
    102,067.12/140,840.31 = 56,739.29/x
  3. Step 3: Cross multiply
    102,067.12x = 140,840.31 × 56,739.29
  4. Step 4: Simplify right side
    102,067.12x = 7,991,178,909.08
  5. Step 5: Solve for x
    x = 7,991,178,909.08/102,067.12
  6. Step 6: Final answer
    x = 78,293.37

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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.