Home / 149,389.58-206,152.40-83,976.41

Finding the Fourth Proportional to 149,389.58, 206,152.40 and 83,976.41

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Solution

The fourth proportional to 149,389.58, 206,152.40 and 83,976.41 is: 115,884.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,389.58 : 206,152.40 = 83,976.41 : x
  2. Step 2: Convert to fraction form
    149,389.58/206,152.40 = 83,976.41/x
  3. Step 3: Cross multiply
    149,389.58x = 206,152.40 × 83,976.41
  4. Step 4: Simplify right side
    149,389.58x = 17,311,938,818.07
  5. Step 5: Solve for x
    x = 17,311,938,818.07/149,389.58
  6. Step 6: Final answer
    x = 115,884.51

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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.