Home / 149,946.29-206,925.85-81,963.53

Finding the Fourth Proportional to 149,946.29, 206,925.85 and 81,963.53

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Solution

The fourth proportional to 149,946.29, 206,925.85 and 81,963.53 is: 113,109.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,946.29 : 206,925.85 = 81,963.53 : x
  2. Step 2: Convert to fraction form
    149,946.29/206,925.85 = 81,963.53/x
  3. Step 3: Cross multiply
    149,946.29x = 206,925.85 × 81,963.53
  4. Step 4: Simplify right side
    149,946.29x = 16,960,373,073.31
  5. Step 5: Solve for x
    x = 16,960,373,073.31/149,946.29
  6. Step 6: Final answer
    x = 113,109.66

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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.