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Finding the Fourth Proportional to 136,260, 204,388.56 and 53,212.32

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Solution

The fourth proportional to 136,260, 204,388.56 and 53,212.32 is: 79,817.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,260 : 204,388.56 = 53,212.32 : x
  2. Step 2: Convert to fraction form
    136,260/204,388.56 = 53,212.32/x
  3. Step 3: Cross multiply
    136,260x = 204,388.56 × 53,212.32
  4. Step 4: Simplify right side
    136,260x = 10,875,989,459.06
  5. Step 5: Solve for x
    x = 10,875,989,459.06/136,260
  6. Step 6: Final answer
    x = 79,817.92

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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.