Home / 117,131.96-161,642.20-63,417.02

Finding the Fourth Proportional to 117,131.96, 161,642.20 and 63,417.02

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Solution

The fourth proportional to 117,131.96, 161,642.20 and 63,417.02 is: 87,515.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,131.96 : 161,642.20 = 63,417.02 : x
  2. Step 2: Convert to fraction form
    117,131.96/161,642.20 = 63,417.02/x
  3. Step 3: Cross multiply
    117,131.96x = 161,642.20 × 63,417.02
  4. Step 4: Simplify right side
    117,131.96x = 10,250,866,630.24
  5. Step 5: Solve for x
    x = 10,250,866,630.24/117,131.96
  6. Step 6: Final answer
    x = 87,515.54

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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.