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Finding the Fourth Proportional to 169,177.61, 253,489.55 and 102,415.39

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Solution

The fourth proportional to 169,177.61, 253,489.55 and 102,415.39 is: 153,455.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,177.61 : 253,489.55 = 102,415.39 : x
  2. Step 2: Convert to fraction form
    169,177.61/253,489.55 = 102,415.39/x
  3. Step 3: Cross multiply
    169,177.61x = 253,489.55 × 102,415.39
  4. Step 4: Simplify right side
    169,177.61x = 25,961,230,554.46
  5. Step 5: Solve for x
    x = 25,961,230,554.46/169,177.61
  6. Step 6: Final answer
    x = 153,455.47

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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.