Home / 116,799.30-161,195.64-71,507.76

Finding the Fourth Proportional to 116,799.30, 161,195.64 and 71,507.76

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Solution

The fourth proportional to 116,799.30, 161,195.64 and 71,507.76 is: 98,688.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,799.30 : 161,195.64 = 71,507.76 : x
  2. Step 2: Convert to fraction form
    116,799.30/161,195.64 = 71,507.76/x
  3. Step 3: Cross multiply
    116,799.30x = 161,195.64 × 71,507.76
  4. Step 4: Simplify right side
    116,799.30x = 11,526,739,138.17
  5. Step 5: Solve for x
    x = 11,526,739,138.17/116,799.30
  6. Step 6: Final answer
    x = 98,688.43

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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.