Home / 116,728.53-161,086.04-66,427.53

Finding the Fourth Proportional to 116,728.53, 161,086.04 and 66,427.53

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Solution

The fourth proportional to 116,728.53, 161,086.04 and 66,427.53 is: 91,670.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,728.53 : 161,086.04 = 66,427.53 : x
  2. Step 2: Convert to fraction form
    116,728.53/161,086.04 = 66,427.53/x
  3. Step 3: Cross multiply
    116,728.53x = 161,086.04 × 66,427.53
  4. Step 4: Simplify right side
    116,728.53x = 10,700,547,422.54
  5. Step 5: Solve for x
    x = 10,700,547,422.54/116,728.53
  6. Step 6: Final answer
    x = 91,670.37

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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.