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Finding the Fourth Proportional to 145,107.94, 200,246.17 and 80,573.82

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Solution

The fourth proportional to 145,107.94, 200,246.17 and 80,573.82 is: 111,190.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,107.94 : 200,246.17 = 80,573.82 : x
  2. Step 2: Convert to fraction form
    145,107.94/200,246.17 = 80,573.82/x
  3. Step 3: Cross multiply
    145,107.94x = 200,246.17 × 80,573.82
  4. Step 4: Simplify right side
    145,107.94x = 16,134,598,454.40
  5. Step 5: Solve for x
    x = 16,134,598,454.40/145,107.94
  6. Step 6: Final answer
    x = 111,190.32

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1.5x scale

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.