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Finding the Fourth Proportional to 170,073.78, 254,887.11 and 70,178.42

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Solution

The fourth proportional to 170,073.78, 254,887.11 and 70,178.42 is: 105,175.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,073.78 : 254,887.11 = 70,178.42 : x
  2. Step 2: Convert to fraction form
    170,073.78/254,887.11 = 70,178.42/x
  3. Step 3: Cross multiply
    170,073.78x = 254,887.11 × 70,178.42
  4. Step 4: Simplify right side
    170,073.78x = 17,887,573,383.73
  5. Step 5: Solve for x
    x = 17,887,573,383.73/170,073.78
  6. Step 6: Final answer
    x = 105,175.37

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1.5x scale

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.