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Finding the Fourth Proportional to 169,319.33, 253,992.82 and 85,036.14

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Solution

The fourth proportional to 169,319.33, 253,992.82 and 85,036.14 is: 127,561.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,319.33 : 253,992.82 = 85,036.14 : x
  2. Step 2: Convert to fraction form
    169,319.33/253,992.82 = 85,036.14/x
  3. Step 3: Cross multiply
    169,319.33x = 253,992.82 × 85,036.14
  4. Step 4: Simplify right side
    169,319.33x = 21,598,569,000.51
  5. Step 5: Solve for x
    x = 21,598,569,000.51/169,319.33
  6. Step 6: Final answer
    x = 127,561.16

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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.