Home / 120,006.20-180,009.30-92,012.60

Finding the Fourth Proportional to 120,006.20, 180,009.30 and 92,012.60

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Solution

The fourth proportional to 120,006.20, 180,009.30 and 92,012.60 is: 138,018.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,006.20 : 180,009.30 = 92,012.60 : x
  2. Step 2: Convert to fraction form
    120,006.20/180,009.30 = 92,012.60/x
  3. Step 3: Cross multiply
    120,006.20x = 180,009.30 × 92,012.60
  4. Step 4: Simplify right side
    120,006.20x = 16,563,123,717.18
  5. Step 5: Solve for x
    x = 16,563,123,717.18/120,006.20
  6. Step 6: Final answer
    x = 138,018.90

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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.