Home / 136,034.51-204,072.89-69,438.60

Finding the Fourth Proportional to 136,034.51, 204,072.89 and 69,438.60

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Solution

The fourth proportional to 136,034.51, 204,072.89 and 69,438.60 is: 104,168.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,034.51 : 204,072.89 = 69,438.60 : x
  2. Step 2: Convert to fraction form
    136,034.51/204,072.89 = 69,438.60/x
  3. Step 3: Cross multiply
    136,034.51x = 204,072.89 × 69,438.60
  4. Step 4: Simplify right side
    136,034.51x = 14,170,535,432.36
  5. Step 5: Solve for x
    x = 14,170,535,432.36/136,034.51
  6. Step 6: Final answer
    x = 104,168.68

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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.