Home / 149,376.98-206,137.62-81,394.52

Finding the Fourth Proportional to 149,376.98, 206,137.62 and 81,394.52

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Solution

The fourth proportional to 149,376.98, 206,137.62 and 81,394.52 is: 112,323.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,376.98 : 206,137.62 = 81,394.52 : x
  2. Step 2: Convert to fraction form
    149,376.98/206,137.62 = 81,394.52/x
  3. Step 3: Cross multiply
    149,376.98x = 206,137.62 × 81,394.52
  4. Step 4: Simplify right side
    149,376.98x = 16,778,471,603.15
  5. Step 5: Solve for x
    x = 16,778,471,603.15/149,376.98
  6. Step 6: Final answer
    x = 112,323.01

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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.