Home / 116,763.12-161,145.24-71,471.28

Finding the Fourth Proportional to 116,763.12, 161,145.24 and 71,471.28

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Solution

The fourth proportional to 116,763.12, 161,145.24 and 71,471.28 is: 98,637.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,763.12 : 161,145.24 = 71,471.28 : x
  2. Step 2: Convert to fraction form
    116,763.12/161,145.24 = 71,471.28/x
  3. Step 3: Cross multiply
    116,763.12x = 161,145.24 × 71,471.28
  4. Step 4: Simplify right side
    116,763.12x = 11,517,256,568.71
  5. Step 5: Solve for x
    x = 11,517,256,568.71/116,763.12
  6. Step 6: Final answer
    x = 98,637.79

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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.