Home / 149,241.06-205,957.71-81,260.67

Finding the Fourth Proportional to 149,241.06, 205,957.71 and 81,260.67

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Solution

The fourth proportional to 149,241.06, 205,957.71 and 81,260.67 is: 112,142.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,241.06 : 205,957.71 = 81,260.67 : x
  2. Step 2: Convert to fraction form
    149,241.06/205,957.71 = 81,260.67/x
  3. Step 3: Cross multiply
    149,241.06x = 205,957.71 × 81,260.67
  4. Step 4: Simplify right side
    149,241.06x = 16,736,261,506.27
  5. Step 5: Solve for x
    x = 16,736,261,506.27/149,241.06
  6. Step 6: Final answer
    x = 112,142.47

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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.