Home / 149,006.90-205,626.60-81,023.29

Finding the Fourth Proportional to 149,006.90, 205,626.60 and 81,023.29

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Solution

The fourth proportional to 149,006.90, 205,626.60 and 81,023.29 is: 111,810.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,006.90 : 205,626.60 = 81,023.29 : x
  2. Step 2: Convert to fraction form
    149,006.90/205,626.60 = 81,023.29/x
  3. Step 3: Cross multiply
    149,006.90x = 205,626.60 × 81,023.29
  4. Step 4: Simplify right side
    149,006.90x = 16,660,543,129.45
  5. Step 5: Solve for x
    x = 16,660,543,129.45/149,006.90
  6. Step 6: Final answer
    x = 111,810.55

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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.