Home / 117,233.28-161,780.64-63,515.09

Finding the Fourth Proportional to 117,233.28, 161,780.64 and 63,515.09

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Solution

The fourth proportional to 117,233.28, 161,780.64 and 63,515.09 is: 87,650.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,233.28 : 161,780.64 = 63,515.09 : x
  2. Step 2: Convert to fraction form
    117,233.28/161,780.64 = 63,515.09/x
  3. Step 3: Cross multiply
    117,233.28x = 161,780.64 × 63,515.09
  4. Step 4: Simplify right side
    117,233.28x = 10,275,511,909.86
  5. Step 5: Solve for x
    x = 10,275,511,909.86/117,233.28
  6. Step 6: Final answer
    x = 87,650.13

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1.5x scale

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.