Home / 142,317.96-196,406.38-81,897.80

Finding the Fourth Proportional to 142,317.96, 196,406.38 and 81,897.80

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Solution

The fourth proportional to 142,317.96, 196,406.38 and 81,897.80 is: 113,023.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,317.96 : 196,406.38 = 81,897.80 : x
  2. Step 2: Convert to fraction form
    142,317.96/196,406.38 = 81,897.80/x
  3. Step 3: Cross multiply
    142,317.96x = 196,406.38 × 81,897.80
  4. Step 4: Simplify right side
    142,317.96x = 16,085,250,427.96
  5. Step 5: Solve for x
    x = 16,085,250,427.96/142,317.96
  6. Step 6: Final answer
    x = 113,023.33

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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.