Home / 116,910.56-161,298.51-71,541.20

Finding the Fourth Proportional to 116,910.56, 161,298.51 and 71,541.20

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Solution

The fourth proportional to 116,910.56, 161,298.51 and 71,541.20 is: 98,703.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,910.56 : 161,298.51 = 71,541.20 : x
  2. Step 2: Convert to fraction form
    116,910.56/161,298.51 = 71,541.20/x
  3. Step 3: Cross multiply
    116,910.56x = 161,298.51 × 71,541.20
  4. Step 4: Simplify right side
    116,910.56x = 11,539,488,963.61
  5. Step 5: Solve for x
    x = 11,539,488,963.61/116,910.56
  6. Step 6: Final answer
    x = 98,703.56

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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.