Home / 142,244.48-213,317.31-79,160.87

Finding the Fourth Proportional to 142,244.48, 213,317.31 and 79,160.87

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Solution

The fourth proportional to 142,244.48, 213,317.31 and 79,160.87 is: 118,713.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,244.48 : 213,317.31 = 79,160.87 : x
  2. Step 2: Convert to fraction form
    142,244.48/213,317.31 = 79,160.87/x
  3. Step 3: Cross multiply
    142,244.48x = 213,317.31 × 79,160.87
  4. Step 4: Simplify right side
    142,244.48x = 16,886,383,845.66
  5. Step 5: Solve for x
    x = 16,886,383,845.66/142,244.48
  6. Step 6: Final answer
    x = 118,713.81

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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.