Home / 121,609.26-182,289.96-68,907.42

Finding the Fourth Proportional to 121,609.26, 182,289.96 and 68,907.42

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Solution

The fourth proportional to 121,609.26, 182,289.96 and 68,907.42 is: 103,290.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,609.26 : 182,289.96 = 68,907.42 : x
  2. Step 2: Convert to fraction form
    121,609.26/182,289.96 = 68,907.42/x
  3. Step 3: Cross multiply
    121,609.26x = 182,289.96 × 68,907.42
  4. Step 4: Simplify right side
    121,609.26x = 12,561,130,835.50
  5. Step 5: Solve for x
    x = 12,561,130,835.50/121,609.26
  6. Step 6: Final answer
    x = 103,290.91

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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.