Home / 149,382.53-206,147.93-81,399.52

Finding the Fourth Proportional to 149,382.53, 206,147.93 and 81,399.52

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Solution

The fourth proportional to 149,382.53, 206,147.93 and 81,399.52 is: 112,331.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,382.53 : 206,147.93 = 81,399.52 : x
  2. Step 2: Convert to fraction form
    149,382.53/206,147.93 = 81,399.52/x
  3. Step 3: Cross multiply
    149,382.53x = 206,147.93 × 81,399.52
  4. Step 4: Simplify right side
    149,382.53x = 16,780,341,628.63
  5. Step 5: Solve for x
    x = 16,780,341,628.63/149,382.53
  6. Step 6: Final answer
    x = 112,331.35

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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.