Home / 140,080.28-193,311.24-76,419.41

Finding the Fourth Proportional to 140,080.28, 193,311.24 and 76,419.41

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Solution

The fourth proportional to 140,080.28, 193,311.24 and 76,419.41 is: 105,459.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,080.28 : 193,311.24 = 76,419.41 : x
  2. Step 2: Convert to fraction form
    140,080.28/193,311.24 = 76,419.41/x
  3. Step 3: Cross multiply
    140,080.28x = 193,311.24 × 76,419.41
  4. Step 4: Simplify right side
    140,080.28x = 14,772,730,907.17
  5. Step 5: Solve for x
    x = 14,772,730,907.17/140,080.28
  6. Step 6: Final answer
    x = 105,459.03

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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.