Home / 156,239.41-215,610.31-84,619.43

Finding the Fourth Proportional to 156,239.41, 215,610.31 and 84,619.43

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Solution

The fourth proportional to 156,239.41, 215,610.31 and 84,619.43 is: 116,774.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,239.41 : 215,610.31 = 84,619.43 : x
  2. Step 2: Convert to fraction form
    156,239.41/215,610.31 = 84,619.43/x
  3. Step 3: Cross multiply
    156,239.41x = 215,610.31 × 84,619.43
  4. Step 4: Simplify right side
    156,239.41x = 18,244,821,534.32
  5. Step 5: Solve for x
    x = 18,244,821,534.32/156,239.41
  6. Step 6: Final answer
    x = 116,774.77

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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.