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Finding the Fourth Proportional to 136,495.40, 204,743.10 and 103,034.30

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Solution

The fourth proportional to 136,495.40, 204,743.10 and 103,034.30 is: 154,551.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,495.40 : 204,743.10 = 103,034.30 : x
  2. Step 2: Convert to fraction form
    136,495.40/204,743.10 = 103,034.30/x
  3. Step 3: Cross multiply
    136,495.40x = 204,743.10 × 103,034.30
  4. Step 4: Simplify right side
    136,495.40x = 21,095,561,988.33
  5. Step 5: Solve for x
    x = 21,095,561,988.33/136,495.40
  6. Step 6: Final answer
    x = 154,551.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.