Home / 136,315.20-204,505.20-57,388.80

Finding the Fourth Proportional to 136,315.20, 204,505.20 and 57,388.80

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Solution

The fourth proportional to 136,315.20, 204,505.20 and 57,388.80 is: 86,096.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,315.20 : 204,505.20 = 57,388.80 : x
  2. Step 2: Convert to fraction form
    136,315.20/204,505.20 = 57,388.80/x
  3. Step 3: Cross multiply
    136,315.20x = 204,505.20 × 57,388.80
  4. Step 4: Simplify right side
    136,315.20x = 11,736,308,021.76
  5. Step 5: Solve for x
    x = 11,736,308,021.76/136,315.20
  6. Step 6: Final answer
    x = 86,096.84

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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.