Home / 149,349.23-206,101.32-81,366.00

Finding the Fourth Proportional to 149,349.23, 206,101.32 and 81,366.00

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Solution

The fourth proportional to 149,349.23, 206,101.32 and 81,366.00 is: 112,284.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,349.23 : 206,101.32 = 81,366.00 : x
  2. Step 2: Convert to fraction form
    149,349.23/206,101.32 = 81,366.00/x
  3. Step 3: Cross multiply
    149,349.23x = 206,101.32 × 81,366.00
  4. Step 4: Simplify right side
    149,349.23x = 16,769,639,382.80
  5. Step 5: Solve for x
    x = 16,769,639,382.80/149,349.23
  6. Step 6: Final answer
    x = 112,284.74

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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.