Home / 276,712.20-415,068.30-99,237.15

Finding the Fourth Proportional to 276,712.20, 415,068.30 and 99,237.15

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Solution

The fourth proportional to 276,712.20, 415,068.30 and 99,237.15 is: 148,855.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,712.20 : 415,068.30 = 99,237.15 : x
  2. Step 2: Convert to fraction form
    276,712.20/415,068.30 = 99,237.15/x
  3. Step 3: Cross multiply
    276,712.20x = 415,068.30 × 99,237.15
  4. Step 4: Simplify right side
    276,712.20x = 41,190,195,147.35
  5. Step 5: Solve for x
    x = 41,190,195,147.35/276,712.20
  6. Step 6: Final answer
    x = 148,855.73

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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.