Home / 149,005.43-205,627.74-81,022.34

Finding the Fourth Proportional to 149,005.43, 205,627.74 and 81,022.34

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Solution

The fourth proportional to 149,005.43, 205,627.74 and 81,022.34 is: 111,810.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,005.43 : 205,627.74 = 81,022.34 : x
  2. Step 2: Convert to fraction form
    149,005.43/205,627.74 = 81,022.34/x
  3. Step 3: Cross multiply
    149,005.43x = 205,627.74 × 81,022.34
  4. Step 4: Simplify right side
    149,005.43x = 16,660,440,663.71
  5. Step 5: Solve for x
    x = 16,660,440,663.71/149,005.43
  6. Step 6: Final answer
    x = 111,810.96

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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.