Home / 136,401.24-204,379.38-83,699.40

Finding the Fourth Proportional to 136,401.24, 204,379.38 and 83,699.40

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Solution

The fourth proportional to 136,401.24, 204,379.38 and 83,699.40 is: 125,412.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,401.24 : 204,379.38 = 83,699.40 : x
  2. Step 2: Convert to fraction form
    136,401.24/204,379.38 = 83,699.40/x
  3. Step 3: Cross multiply
    136,401.24x = 204,379.38 × 83,699.40
  4. Step 4: Simplify right side
    136,401.24x = 17,106,431,478.37
  5. Step 5: Solve for x
    x = 17,106,431,478.37/136,401.24
  6. Step 6: Final answer
    x = 125,412.58

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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.