Home / 137,985.28-206,977.92-43,222.87

Finding the Fourth Proportional to 137,985.28, 206,977.92 and 43,222.87

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Solution

The fourth proportional to 137,985.28, 206,977.92 and 43,222.87 is: 64,834.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,985.28 : 206,977.92 = 43,222.87 : x
  2. Step 2: Convert to fraction form
    137,985.28/206,977.92 = 43,222.87/x
  3. Step 3: Cross multiply
    137,985.28x = 206,977.92 × 43,222.87
  4. Step 4: Simplify right side
    137,985.28x = 8,946,179,729.03
  5. Step 5: Solve for x
    x = 8,946,179,729.03/137,985.28
  6. Step 6: Final answer
    x = 64,834.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.