Home / 149,004.93-205,627.05-81,021.84

Finding the Fourth Proportional to 149,004.93, 205,627.05 and 81,021.84

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Solution

The fourth proportional to 149,004.93, 205,627.05 and 81,021.84 is: 111,810.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,004.93 : 205,627.05 = 81,021.84 : x
  2. Step 2: Convert to fraction form
    149,004.93/205,627.05 = 81,021.84/x
  3. Step 3: Cross multiply
    149,004.93x = 205,627.05 × 81,021.84
  4. Step 4: Simplify right side
    149,004.93x = 16,660,281,944.77
  5. Step 5: Solve for x
    x = 16,660,281,944.77/149,004.93
  6. Step 6: Final answer
    x = 111,810.27

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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.