Home / 276,758.10-415,136.34-87,234.30

Finding the Fourth Proportional to 276,758.10, 415,136.34 and 87,234.30

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Solution

The fourth proportional to 276,758.10, 415,136.34 and 87,234.30 is: 130,851.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,758.10 : 415,136.34 = 87,234.30 : x
  2. Step 2: Convert to fraction form
    276,758.10/415,136.34 = 87,234.30/x
  3. Step 3: Cross multiply
    276,758.10x = 415,136.34 × 87,234.30
  4. Step 4: Simplify right side
    276,758.10x = 36,214,128,024.46
  5. Step 5: Solve for x
    x = 36,214,128,024.46/276,758.10
  6. Step 6: Final answer
    x = 130,851.19

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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.