Home / 149,197.67-205,895.41-81,216.60

Finding the Fourth Proportional to 149,197.67, 205,895.41 and 81,216.60

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Solution

The fourth proportional to 149,197.67, 205,895.41 and 81,216.60 is: 112,080.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,197.67 : 205,895.41 = 81,216.60 : x
  2. Step 2: Convert to fraction form
    149,197.67/205,895.41 = 81,216.60/x
  3. Step 3: Cross multiply
    149,197.67x = 205,895.41 × 81,216.60
  4. Step 4: Simplify right side
    149,197.67x = 16,722,124,952.76
  5. Step 5: Solve for x
    x = 16,722,124,952.76/149,197.67
  6. Step 6: Final answer
    x = 112,080.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.