Home / 136,218.60-204,327.90-53,112.60

Finding the Fourth Proportional to 136,218.60, 204,327.90 and 53,112.60

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Solution

The fourth proportional to 136,218.60, 204,327.90 and 53,112.60 is: 79,668.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,218.60 : 204,327.90 = 53,112.60 : x
  2. Step 2: Convert to fraction form
    136,218.60/204,327.90 = 53,112.60/x
  3. Step 3: Cross multiply
    136,218.60x = 204,327.90 × 53,112.60
  4. Step 4: Simplify right side
    136,218.60x = 10,852,386,021.54
  5. Step 5: Solve for x
    x = 10,852,386,021.54/136,218.60
  6. Step 6: Final answer
    x = 79,668.90

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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.