Home / 116,724-161,108.28-66,452.16

Finding the Fourth Proportional to 116,724, 161,108.28 and 66,452.16

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Solution

The fourth proportional to 116,724, 161,108.28 and 66,452.16 is: 91,720.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,724 : 161,108.28 = 66,452.16 : x
  2. Step 2: Convert to fraction form
    116,724/161,108.28 = 66,452.16/x
  3. Step 3: Cross multiply
    116,724x = 161,108.28 × 66,452.16
  4. Step 4: Simplify right side
    116,724x = 10,705,993,199.88
  5. Step 5: Solve for x
    x = 10,705,993,199.88/116,724
  6. Step 6: Final answer
    x = 91,720.58

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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.