Home / 117,106.12-161,606.54-63,390.97

Finding the Fourth Proportional to 117,106.12, 161,606.54 and 63,390.97

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Solution

The fourth proportional to 117,106.12, 161,606.54 and 63,390.97 is: 87,479.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,106.12 : 161,606.54 = 63,390.97 : x
  2. Step 2: Convert to fraction form
    117,106.12/161,606.54 = 63,390.97/x
  3. Step 3: Cross multiply
    117,106.12x = 161,606.54 × 63,390.97
  4. Step 4: Simplify right side
    117,106.12x = 10,244,395,328.94
  5. Step 5: Solve for x
    x = 10,244,395,328.94/117,106.12
  6. Step 6: Final answer
    x = 87,479.59

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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.