Home / 172,818.27-259,171.36-66,196.55

Finding the Fourth Proportional to 172,818.27, 259,171.36 and 66,196.55

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Solution

The fourth proportional to 172,818.27, 259,171.36 and 66,196.55 is: 99,273.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,818.27 : 259,171.36 = 66,196.55 : x
  2. Step 2: Convert to fraction form
    172,818.27/259,171.36 = 66,196.55/x
  3. Step 3: Cross multiply
    172,818.27x = 259,171.36 × 66,196.55
  4. Step 4: Simplify right side
    172,818.27x = 17,156,249,649.59
  5. Step 5: Solve for x
    x = 17,156,249,649.59/172,818.27
  6. Step 6: Final answer
    x = 99,273.36

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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.