Home / 149,904.27-206,870.64-81,924.12

Finding the Fourth Proportional to 149,904.27, 206,870.64 and 81,924.12

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Solution

The fourth proportional to 149,904.27, 206,870.64 and 81,924.12 is: 113,056.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,904.27 : 206,870.64 = 81,924.12 : x
  2. Step 2: Convert to fraction form
    149,904.27/206,870.64 = 81,924.12/x
  3. Step 3: Cross multiply
    149,904.27x = 206,870.64 × 81,924.12
  4. Step 4: Simplify right side
    149,904.27x = 16,947,695,135.84
  5. Step 5: Solve for x
    x = 16,947,695,135.84/149,904.27
  6. Step 6: Final answer
    x = 113,056.79

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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.