Home / 116,990.09-161,446.34-66,013.64

Finding the Fourth Proportional to 116,990.09, 161,446.34 and 66,013.64

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Solution

The fourth proportional to 116,990.09, 161,446.34 and 66,013.64 is: 91,098.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,990.09 : 161,446.34 = 66,013.64 : x
  2. Step 2: Convert to fraction form
    116,990.09/161,446.34 = 66,013.64/x
  3. Step 3: Cross multiply
    116,990.09x = 161,446.34 × 66,013.64
  4. Step 4: Simplify right side
    116,990.09x = 10,657,659,925.88
  5. Step 5: Solve for x
    x = 10,657,659,925.88/116,990.09
  6. Step 6: Final answer
    x = 91,098.83

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1.5x scale

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.