Home / 117,027.43-161,503.64-71,707.93

Finding the Fourth Proportional to 117,027.43, 161,503.64 and 71,707.93

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Solution

The fourth proportional to 117,027.43, 161,503.64 and 71,707.93 is: 98,960.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,027.43 : 161,503.64 = 71,707.93 : x
  2. Step 2: Convert to fraction form
    117,027.43/161,503.64 = 71,707.93/x
  3. Step 3: Cross multiply
    117,027.43x = 161,503.64 × 71,707.93
  4. Step 4: Simplify right side
    117,027.43x = 11,581,091,487.38
  5. Step 5: Solve for x
    x = 11,581,091,487.38/117,027.43
  6. Step 6: Final answer
    x = 98,960.49

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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.