Home / 117,172.07-161,695.54-63,456.62

Finding the Fourth Proportional to 117,172.07, 161,695.54 and 63,456.62

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Solution

The fourth proportional to 117,172.07, 161,695.54 and 63,456.62 is: 87,569.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,172.07 : 161,695.54 = 63,456.62 : x
  2. Step 2: Convert to fraction form
    117,172.07/161,695.54 = 63,456.62/x
  3. Step 3: Cross multiply
    117,172.07x = 161,695.54 × 63,456.62
  4. Step 4: Simplify right side
    117,172.07x = 10,260,651,708.32
  5. Step 5: Solve for x
    x = 10,260,651,708.32/117,172.07
  6. Step 6: Final answer
    x = 87,569.09

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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.