Home / 75,404.20-113,106.30-71,602.60

Finding the Fourth Proportional to 75,404.20, 113,106.30 and 71,602.60

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Solution

The fourth proportional to 75,404.20, 113,106.30 and 71,602.60 is: 107,403.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,404.20 : 113,106.30 = 71,602.60 : x
  2. Step 2: Convert to fraction form
    75,404.20/113,106.30 = 71,602.60/x
  3. Step 3: Cross multiply
    75,404.20x = 113,106.30 × 71,602.60
  4. Step 4: Simplify right side
    75,404.20x = 8,098,705,156.38
  5. Step 5: Solve for x
    x = 8,098,705,156.38/75,404.20
  6. Step 6: Final answer
    x = 107,403.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.