Home / 136,064.16-187,781.40-82,362.60

Finding the Fourth Proportional to 136,064.16, 187,781.40 and 82,362.60

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Solution

The fourth proportional to 136,064.16, 187,781.40 and 82,362.60 is: 113,668.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,064.16 : 187,781.40 = 82,362.60 : x
  2. Step 2: Convert to fraction form
    136,064.16/187,781.40 = 82,362.60/x
  3. Step 3: Cross multiply
    136,064.16x = 187,781.40 × 82,362.60
  4. Step 4: Simplify right side
    136,064.16x = 15,466,164,335.64
  5. Step 5: Solve for x
    x = 15,466,164,335.64/136,064.16
  6. Step 6: Final answer
    x = 113,668.17

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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.