Home / 97,825.64-135,121.54-75,436.52

Finding the Fourth Proportional to 97,825.64, 135,121.54 and 75,436.52

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Solution

The fourth proportional to 97,825.64, 135,121.54 and 75,436.52 is: 104,196.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,825.64 : 135,121.54 = 75,436.52 : x
  2. Step 2: Convert to fraction form
    97,825.64/135,121.54 = 75,436.52/x
  3. Step 3: Cross multiply
    97,825.64x = 135,121.54 × 75,436.52
  4. Step 4: Simplify right side
    97,825.64x = 10,193,098,754.64
  5. Step 5: Solve for x
    x = 10,193,098,754.64/97,825.64
  6. Step 6: Final answer
    x = 104,196.60

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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.