Home / 149,060.81-205,701.93-81,076.34

Finding the Fourth Proportional to 149,060.81, 205,701.93 and 81,076.34

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Solution

The fourth proportional to 149,060.81, 205,701.93 and 81,076.34 is: 111,884.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,060.81 : 205,701.93 = 81,076.34 : x
  2. Step 2: Convert to fraction form
    149,060.81/205,701.93 = 81,076.34/x
  3. Step 3: Cross multiply
    149,060.81x = 205,701.93 × 81,076.34
  4. Step 4: Simplify right side
    149,060.81x = 16,677,560,129.59
  5. Step 5: Solve for x
    x = 16,677,560,129.59/149,060.81
  6. Step 6: Final answer
    x = 111,884.27

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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.