Home / 149,956.80-206,941.24-81,973.92

Finding the Fourth Proportional to 149,956.80, 206,941.24 and 81,973.92

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Solution

The fourth proportional to 149,956.80, 206,941.24 and 81,973.92 is: 113,124.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,956.80 : 206,941.24 = 81,973.92 : x
  2. Step 2: Convert to fraction form
    149,956.80/206,941.24 = 81,973.92/x
  3. Step 3: Cross multiply
    149,956.80x = 206,941.24 × 81,973.92
  4. Step 4: Simplify right side
    149,956.80x = 16,963,784,652.46
  5. Step 5: Solve for x
    x = 16,963,784,652.46/149,956.80
  6. Step 6: Final answer
    x = 113,124.48

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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.