Home / 106,431.20-159,668.40-36,317.60

Finding the Fourth Proportional to 106,431.20, 159,668.40 and 36,317.60

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Solution

The fourth proportional to 106,431.20, 159,668.40 and 36,317.60 is: 54,483.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,431.20 : 159,668.40 = 36,317.60 : x
  2. Step 2: Convert to fraction form
    106,431.20/159,668.40 = 36,317.60/x
  3. Step 3: Cross multiply
    106,431.20x = 159,668.40 × 36,317.60
  4. Step 4: Simplify right side
    106,431.20x = 5,798,773,083.84
  5. Step 5: Solve for x
    x = 5,798,773,083.84/106,431.20
  6. Step 6: Final answer
    x = 54,483.77

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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.