Home / 149,878.14-206,829.32-81,893.62

Finding the Fourth Proportional to 149,878.14, 206,829.32 and 81,893.62

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Solution

The fourth proportional to 149,878.14, 206,829.32 and 81,893.62 is: 113,011.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,878.14 : 206,829.32 = 81,893.62 : x
  2. Step 2: Convert to fraction form
    149,878.14/206,829.32 = 81,893.62/x
  3. Step 3: Cross multiply
    149,878.14x = 206,829.32 × 81,893.62
  4. Step 4: Simplify right side
    149,878.14x = 16,938,001,736.94
  5. Step 5: Solve for x
    x = 16,938,001,736.94/149,878.14
  6. Step 6: Final answer
    x = 113,011.82

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1.5x scale

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.