Home / 273,974.20-411,026.10-86,985.70

Finding the Fourth Proportional to 273,974.20, 411,026.10 and 86,985.70

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Solution

The fourth proportional to 273,974.20, 411,026.10 and 86,985.70 is: 130,499.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,974.20 : 411,026.10 = 86,985.70 : x
  2. Step 2: Convert to fraction form
    273,974.20/411,026.10 = 86,985.70/x
  3. Step 3: Cross multiply
    273,974.20x = 411,026.10 × 86,985.70
  4. Step 4: Simplify right side
    273,974.20x = 35,753,393,026.77
  5. Step 5: Solve for x
    x = 35,753,393,026.77/273,974.20
  6. Step 6: Final answer
    x = 130,499.12

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1.5x scale

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.