Home / 149,854.37-206,813.33-81,881.67

Finding the Fourth Proportional to 149,854.37, 206,813.33 and 81,881.67

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Solution

The fourth proportional to 149,854.37, 206,813.33 and 81,881.67 is: 113,004.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,854.37 : 206,813.33 = 81,881.67 : x
  2. Step 2: Convert to fraction form
    149,854.37/206,813.33 = 81,881.67/x
  3. Step 3: Cross multiply
    149,854.37x = 206,813.33 × 81,881.67
  4. Step 4: Simplify right side
    149,854.37x = 16,934,221,511.86
  5. Step 5: Solve for x
    x = 16,934,221,511.86/149,854.37
  6. Step 6: Final answer
    x = 113,004.53

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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.