Home / 191,410.07-287,134.74-73,180.85

Finding the Fourth Proportional to 191,410.07, 287,134.74 and 73,180.85

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Solution

The fourth proportional to 191,410.07, 287,134.74 and 73,180.85 is: 109,778.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,410.07 : 287,134.74 = 73,180.85 : x
  2. Step 2: Convert to fraction form
    191,410.07/287,134.74 = 73,180.85/x
  3. Step 3: Cross multiply
    191,410.07x = 287,134.74 × 73,180.85
  4. Step 4: Simplify right side
    191,410.07x = 21,012,762,902.06
  5. Step 5: Solve for x
    x = 21,012,762,902.06/191,410.07
  6. Step 6: Final answer
    x = 109,778.78

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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.