Home / 273,961.20-411,006.60-86,972.70

Finding the Fourth Proportional to 273,961.20, 411,006.60 and 86,972.70

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Solution

The fourth proportional to 273,961.20, 411,006.60 and 86,972.70 is: 130,479.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,961.20 : 411,006.60 = 86,972.70 : x
  2. Step 2: Convert to fraction form
    273,961.20/411,006.60 = 86,972.70/x
  3. Step 3: Cross multiply
    273,961.20x = 411,006.60 × 86,972.70
  4. Step 4: Simplify right side
    273,961.20x = 35,746,353,719.82
  5. Step 5: Solve for x
    x = 35,746,353,719.82/273,961.20
  6. Step 6: Final answer
    x = 130,479.62

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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.