Home / 116,911.56-161,299.89-71,542.20

Finding the Fourth Proportional to 116,911.56, 161,299.89 and 71,542.20

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Solution

The fourth proportional to 116,911.56, 161,299.89 and 71,542.20 is: 98,704.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,911.56 : 161,299.89 = 71,542.20 : x
  2. Step 2: Convert to fraction form
    116,911.56/161,299.89 = 71,542.20/x
  3. Step 3: Cross multiply
    116,911.56x = 161,299.89 × 71,542.20
  4. Step 4: Simplify right side
    116,911.56x = 11,539,748,990.36
  5. Step 5: Solve for x
    x = 11,539,748,990.36/116,911.56
  6. Step 6: Final answer
    x = 98,704.94

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1.5x scale

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.