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Finding the Fourth Proportional to 170,400, 235,205.26 and 109,970.76

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Solution

The fourth proportional to 170,400, 235,205.26 and 109,970.76 is: 151,794.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,400 : 235,205.26 = 109,970.76 : x
  2. Step 2: Convert to fraction form
    170,400/235,205.26 = 109,970.76/x
  3. Step 3: Cross multiply
    170,400x = 235,205.26 × 109,970.76
  4. Step 4: Simplify right side
    170,400x = 25,865,701,198.20
  5. Step 5: Solve for x
    x = 25,865,701,198.20/170,400
  6. Step 6: Final answer
    x = 151,794.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.