Home / 317,764.96-476,647.02-81,107.60

Finding the Fourth Proportional to 317,764.96, 476,647.02 and 81,107.60

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Solution

The fourth proportional to 317,764.96, 476,647.02 and 81,107.60 is: 121,661.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,764.96 : 476,647.02 = 81,107.60 : x
  2. Step 2: Convert to fraction form
    317,764.96/476,647.02 = 81,107.60/x
  3. Step 3: Cross multiply
    317,764.96x = 476,647.02 × 81,107.60
  4. Step 4: Simplify right side
    317,764.96x = 38,659,695,839.35
  5. Step 5: Solve for x
    x = 38,659,695,839.35/317,764.96
  6. Step 6: Final answer
    x = 121,661.29

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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.