Home / 117,370.28-161,991.69-69,649.94

Finding the Fourth Proportional to 117,370.28, 161,991.69 and 69,649.94

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Solution

The fourth proportional to 117,370.28, 161,991.69 and 69,649.94 is: 96,129.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,370.28 : 161,991.69 = 69,649.94 : x
  2. Step 2: Convert to fraction form
    117,370.28/161,991.69 = 69,649.94/x
  3. Step 3: Cross multiply
    117,370.28x = 161,991.69 × 69,649.94
  4. Step 4: Simplify right side
    117,370.28x = 11,282,711,489.00
  5. Step 5: Solve for x
    x = 11,282,711,489.00/117,370.28
  6. Step 6: Final answer
    x = 96,129.20

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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.