Home / 104,996.36-157,338.96-86,408.48

Finding the Fourth Proportional to 104,996.36, 157,338.96 and 86,408.48

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Solution

The fourth proportional to 104,996.36, 157,338.96 and 86,408.48 is: 129,484.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,996.36 : 157,338.96 = 86,408.48 : x
  2. Step 2: Convert to fraction form
    104,996.36/157,338.96 = 86,408.48/x
  3. Step 3: Cross multiply
    104,996.36x = 157,338.96 × 86,408.48
  4. Step 4: Simplify right side
    104,996.36x = 13,595,420,378.38
  5. Step 5: Solve for x
    x = 13,595,420,378.38/104,996.36
  6. Step 6: Final answer
    x = 129,484.68

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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.