Home / 171,325.80-256,998.78-66,145.32

Finding the Fourth Proportional to 171,325.80, 256,998.78 and 66,145.32

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Solution

The fourth proportional to 171,325.80, 256,998.78 and 66,145.32 is: 99,221.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,325.80 : 256,998.78 = 66,145.32 : x
  2. Step 2: Convert to fraction form
    171,325.80/256,998.78 = 66,145.32/x
  3. Step 3: Cross multiply
    171,325.80x = 256,998.78 × 66,145.32
  4. Step 4: Simplify right side
    171,325.80x = 16,999,266,542.71
  5. Step 5: Solve for x
    x = 16,999,266,542.71/171,325.80
  6. Step 6: Final answer
    x = 99,221.87

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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.