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Finding the Fourth Proportional to 169,710.78, 254,566.89 and 57,391.59

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Solution

The fourth proportional to 169,710.78, 254,566.89 and 57,391.59 is: 86,087.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,710.78 : 254,566.89 = 57,391.59 : x
  2. Step 2: Convert to fraction form
    169,710.78/254,566.89 = 57,391.59/x
  3. Step 3: Cross multiply
    169,710.78x = 254,566.89 × 57,391.59
  4. Step 4: Simplify right side
    169,710.78x = 14,609,998,578.46
  5. Step 5: Solve for x
    x = 14,609,998,578.46/169,710.78
  6. Step 6: Final answer
    x = 86,087.63

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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.