Home / 116,921.40-161,313.28-71,552.08

Finding the Fourth Proportional to 116,921.40, 161,313.28 and 71,552.08

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Solution

The fourth proportional to 116,921.40, 161,313.28 and 71,552.08 is: 98,718.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,921.40 : 161,313.28 = 71,552.08 : x
  2. Step 2: Convert to fraction form
    116,921.40/161,313.28 = 71,552.08/x
  3. Step 3: Cross multiply
    116,921.40x = 161,313.28 × 71,552.08
  4. Step 4: Simplify right side
    116,921.40x = 11,542,300,715.62
  5. Step 5: Solve for x
    x = 11,542,300,715.62/116,921.40
  6. Step 6: Final answer
    x = 98,718.46

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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.