Home / 140,763.06-194,179.41-87,030.90

Finding the Fourth Proportional to 140,763.06, 194,179.41 and 87,030.90

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Solution

The fourth proportional to 140,763.06, 194,179.41 and 87,030.90 is: 120,057.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,763.06 : 194,179.41 = 87,030.90 : x
  2. Step 2: Convert to fraction form
    140,763.06/194,179.41 = 87,030.90/x
  3. Step 3: Cross multiply
    140,763.06x = 194,179.41 × 87,030.90
  4. Step 4: Simplify right side
    140,763.06x = 16,899,608,813.77
  5. Step 5: Solve for x
    x = 16,899,608,813.77/140,763.06
  6. Step 6: Final answer
    x = 120,057.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.