Home / 117,097.12-161,554.16-66,103.84

Finding the Fourth Proportional to 117,097.12, 161,554.16 and 66,103.84

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Solution

The fourth proportional to 117,097.12, 161,554.16 and 66,103.84 is: 91,200.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,097.12 : 161,554.16 = 66,103.84 : x
  2. Step 2: Convert to fraction form
    117,097.12/161,554.16 = 66,103.84/x
  3. Step 3: Cross multiply
    117,097.12x = 161,554.16 × 66,103.84
  4. Step 4: Simplify right side
    117,097.12x = 10,679,350,343.97
  5. Step 5: Solve for x
    x = 10,679,350,343.97/117,097.12
  6. Step 6: Final answer
    x = 91,200.79

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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.