Home / 140,049.94-193,271.54-76,390.02

Finding the Fourth Proportional to 140,049.94, 193,271.54 and 76,390.02

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Solution

The fourth proportional to 140,049.94, 193,271.54 and 76,390.02 is: 105,419.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,049.94 : 193,271.54 = 76,390.02 : x
  2. Step 2: Convert to fraction form
    140,049.94/193,271.54 = 76,390.02/x
  3. Step 3: Cross multiply
    140,049.94x = 193,271.54 × 76,390.02
  4. Step 4: Simplify right side
    140,049.94x = 14,764,016,806.03
  5. Step 5: Solve for x
    x = 14,764,016,806.03/140,049.94
  6. Step 6: Final answer
    x = 105,419.66

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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.