Home / 149,934.16-206,906.70-81,950.32

Finding the Fourth Proportional to 149,934.16, 206,906.70 and 81,950.32

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Solution

The fourth proportional to 149,934.16, 206,906.70 and 81,950.32 is: 113,090.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,934.16 : 206,906.70 = 81,950.32 : x
  2. Step 2: Convert to fraction form
    149,934.16/206,906.70 = 81,950.32/x
  3. Step 3: Cross multiply
    149,934.16x = 206,906.70 × 81,950.32
  4. Step 4: Simplify right side
    149,934.16x = 16,956,070,275.14
  5. Step 5: Solve for x
    x = 16,956,070,275.14/149,934.16
  6. Step 6: Final answer
    x = 113,090.11

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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.