Home / 149,047.86-205,683.98-81,063.36

Finding the Fourth Proportional to 149,047.86, 205,683.98 and 81,063.36

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Solution

The fourth proportional to 149,047.86, 205,683.98 and 81,063.36 is: 111,866.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,047.86 : 205,683.98 = 81,063.36 : x
  2. Step 2: Convert to fraction form
    149,047.86/205,683.98 = 81,063.36/x
  3. Step 3: Cross multiply
    149,047.86x = 205,683.98 × 81,063.36
  4. Step 4: Simplify right side
    149,047.86x = 16,673,434,516.97
  5. Step 5: Solve for x
    x = 16,673,434,516.97/149,047.86
  6. Step 6: Final answer
    x = 111,866.31

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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.