Home / 117,289.82-161,953.12-108,334.06

Finding the Fourth Proportional to 117,289.82, 161,953.12 and 108,334.06

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Solution

The fourth proportional to 117,289.82, 161,953.12 and 108,334.06 is: 149,587.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,289.82 : 161,953.12 = 108,334.06 : x
  2. Step 2: Convert to fraction form
    117,289.82/161,953.12 = 108,334.06/x
  3. Step 3: Cross multiply
    117,289.82x = 161,953.12 × 108,334.06
  4. Step 4: Simplify right side
    117,289.82x = 17,545,038,749.80
  5. Step 5: Solve for x
    x = 17,545,038,749.80/117,289.82
  6. Step 6: Final answer
    x = 149,587.05

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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.