Home / 117,104.28-161,586.50-71,140

Finding the Fourth Proportional to 117,104.28, 161,586.50 and 71,140

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Solution

The fourth proportional to 117,104.28, 161,586.50 and 71,140 is: 98,162.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,104.28 : 161,586.50 = 71,140 : x
  2. Step 2: Convert to fraction form
    117,104.28/161,586.50 = 71,140/x
  3. Step 3: Cross multiply
    117,104.28x = 161,586.50 × 71,140
  4. Step 4: Simplify right side
    117,104.28x = 11,495,263,610
  5. Step 5: Solve for x
    x = 11,495,263,610/117,104.28
  6. Step 6: Final answer
    x = 98,162.63

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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.