Home / 109,986.84-151,781.76-62,239.32

Finding the Fourth Proportional to 109,986.84, 151,781.76 and 62,239.32

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Solution

The fourth proportional to 109,986.84, 151,781.76 and 62,239.32 is: 85,890.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,986.84 : 151,781.76 = 62,239.32 : x
  2. Step 2: Convert to fraction form
    109,986.84/151,781.76 = 62,239.32/x
  3. Step 3: Cross multiply
    109,986.84x = 151,781.76 × 62,239.32
  4. Step 4: Simplify right side
    109,986.84x = 9,446,793,530.80
  5. Step 5: Solve for x
    x = 9,446,793,530.80/109,986.84
  6. Step 6: Final answer
    x = 85,890.22

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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.