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Finding the Fourth Proportional to 136,175.06, 187,921.59 and 76,559.06

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Solution

The fourth proportional to 136,175.06, 187,921.59 and 76,559.06 is: 105,651.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,175.06 : 187,921.59 = 76,559.06 : x
  2. Step 2: Convert to fraction form
    136,175.06/187,921.59 = 76,559.06/x
  3. Step 3: Cross multiply
    136,175.06x = 187,921.59 × 76,559.06
  4. Step 4: Simplify right side
    136,175.06x = 14,387,100,466.81
  5. Step 5: Solve for x
    x = 14,387,100,466.81/136,175.06
  6. Step 6: Final answer
    x = 105,651.51

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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.