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Finding the Fourth Proportional to 169,471.72, 253,897.75 and 79,349.10

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Solution

The fourth proportional to 169,471.72, 253,897.75 and 79,349.10 is: 118,878.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,471.72 : 253,897.75 = 79,349.10 : x
  2. Step 2: Convert to fraction form
    169,471.72/253,897.75 = 79,349.10/x
  3. Step 3: Cross multiply
    169,471.72x = 253,897.75 × 79,349.10
  4. Step 4: Simplify right side
    169,471.72x = 20,146,557,954.53
  5. Step 5: Solve for x
    x = 20,146,557,954.53/169,471.72
  6. Step 6: Final answer
    x = 118,878.58

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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.