Home / 149,345.10-206,095.41-81,361.94

Finding the Fourth Proportional to 149,345.10, 206,095.41 and 81,361.94

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Solution

The fourth proportional to 149,345.10, 206,095.41 and 81,361.94 is: 112,279.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,345.10 : 206,095.41 = 81,361.94 : x
  2. Step 2: Convert to fraction form
    149,345.10/206,095.41 = 81,361.94/x
  3. Step 3: Cross multiply
    149,345.10x = 206,095.41 × 81,361.94
  4. Step 4: Simplify right side
    149,345.10x = 16,768,321,352.22
  5. Step 5: Solve for x
    x = 16,768,321,352.22/149,345.10
  6. Step 6: Final answer
    x = 112,279.02

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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.