Home / 170,740.10-256,110.15-82,166.60

Finding the Fourth Proportional to 170,740.10, 256,110.15 and 82,166.60

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Solution

The fourth proportional to 170,740.10, 256,110.15 and 82,166.60 is: 123,249.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,740.10 : 256,110.15 = 82,166.60 : x
  2. Step 2: Convert to fraction form
    170,740.10/256,110.15 = 82,166.60/x
  3. Step 3: Cross multiply
    170,740.10x = 256,110.15 × 82,166.60
  4. Step 4: Simplify right side
    170,740.10x = 21,043,700,250.99
  5. Step 5: Solve for x
    x = 21,043,700,250.99/170,740.10
  6. Step 6: Final answer
    x = 123,249.90

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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.