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Finding the Fourth Proportional to 117,358.48, 161,954.80 and 63,643.48

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Solution

The fourth proportional to 117,358.48, 161,954.80 and 63,643.48 is: 87,828.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,358.48 : 161,954.80 = 63,643.48 : x
  2. Step 2: Convert to fraction form
    117,358.48/161,954.80 = 63,643.48/x
  3. Step 3: Cross multiply
    117,358.48x = 161,954.80 × 63,643.48
  4. Step 4: Simplify right side
    117,358.48x = 10,307,367,074.70
  5. Step 5: Solve for x
    x = 10,307,367,074.70/117,358.48
  6. Step 6: Final answer
    x = 87,828.06

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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.