Home / 116,531.11-160,812.70-65,543.03

Finding the Fourth Proportional to 116,531.11, 160,812.70 and 65,543.03

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Solution

The fourth proportional to 116,531.11, 160,812.70 and 65,543.03 is: 90,449.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,531.11 : 160,812.70 = 65,543.03 : x
  2. Step 2: Convert to fraction form
    116,531.11/160,812.70 = 65,543.03/x
  3. Step 3: Cross multiply
    116,531.11x = 160,812.70 × 65,543.03
  4. Step 4: Simplify right side
    116,531.11x = 10,540,151,620.48
  5. Step 5: Solve for x
    x = 10,540,151,620.48/116,531.11
  6. Step 6: Final answer
    x = 90,449.25

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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.