Home / 149,834.16-206,946.68-119,309.45

Finding the Fourth Proportional to 149,834.16, 206,946.68 and 119,309.45

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Solution

The fourth proportional to 149,834.16, 206,946.68 and 119,309.45 is: 164,786.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,834.16 : 206,946.68 = 119,309.45 : x
  2. Step 2: Convert to fraction form
    149,834.16/206,946.68 = 119,309.45/x
  3. Step 3: Cross multiply
    149,834.16x = 206,946.68 × 119,309.45
  4. Step 4: Simplify right side
    149,834.16x = 24,690,692,938.85
  5. Step 5: Solve for x
    x = 24,690,692,938.85/149,834.16
  6. Step 6: Final answer
    x = 164,786.81

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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.