Home / 149,898.47-206,862.60-81,918.32

Finding the Fourth Proportional to 149,898.47, 206,862.60 and 81,918.32

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Solution

The fourth proportional to 149,898.47, 206,862.60 and 81,918.32 is: 113,048.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,898.47 : 206,862.60 = 81,918.32 : x
  2. Step 2: Convert to fraction form
    149,898.47/206,862.60 = 81,918.32/x
  3. Step 3: Cross multiply
    149,898.47x = 206,862.60 × 81,918.32
  4. Step 4: Simplify right side
    149,898.47x = 16,945,835,628.52
  5. Step 5: Solve for x
    x = 16,945,835,628.52/149,898.47
  6. Step 6: Final answer
    x = 113,048.76

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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.