Home / 117,175.06-161,700.78-63,458.86

Finding the Fourth Proportional to 117,175.06, 161,700.78 and 63,458.86

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Solution

The fourth proportional to 117,175.06, 161,700.78 and 63,458.86 is: 87,572.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,175.06 : 161,700.78 = 63,458.86 : x
  2. Step 2: Convert to fraction form
    117,175.06/161,700.78 = 63,458.86/x
  3. Step 3: Cross multiply
    117,175.06x = 161,700.78 × 63,458.86
  4. Step 4: Simplify right side
    117,175.06x = 10,261,347,159.91
  5. Step 5: Solve for x
    x = 10,261,347,159.91/117,175.06
  6. Step 6: Final answer
    x = 87,572.79

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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.