Home / 136,431.08-204,645.20-53,324.36

Finding the Fourth Proportional to 136,431.08, 204,645.20 and 53,324.36

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Solution

The fourth proportional to 136,431.08, 204,645.20 and 53,324.36 is: 79,985.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,431.08 : 204,645.20 = 53,324.36 : x
  2. Step 2: Convert to fraction form
    136,431.08/204,645.20 = 53,324.36/x
  3. Step 3: Cross multiply
    136,431.08x = 204,645.20 × 53,324.36
  4. Step 4: Simplify right side
    136,431.08x = 10,912,574,317.07
  5. Step 5: Solve for x
    x = 10,912,574,317.07/136,431.08
  6. Step 6: Final answer
    x = 79,985.98

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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.