Home / 276,670.20-415,005.30-99,191.10

Finding the Fourth Proportional to 276,670.20, 415,005.30 and 99,191.10

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Solution

The fourth proportional to 276,670.20, 415,005.30 and 99,191.10 is: 148,786.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,670.20 : 415,005.30 = 99,191.10 : x
  2. Step 2: Convert to fraction form
    276,670.20/415,005.30 = 99,191.10/x
  3. Step 3: Cross multiply
    276,670.20x = 415,005.30 × 99,191.10
  4. Step 4: Simplify right side
    276,670.20x = 41,164,832,212.83
  5. Step 5: Solve for x
    x = 41,164,832,212.83/276,670.20
  6. Step 6: Final answer
    x = 148,786.65

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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.