Home / 145,635.26-200,963.84-81,099.62

Finding the Fourth Proportional to 145,635.26, 200,963.84 and 81,099.62

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Solution

The fourth proportional to 145,635.26, 200,963.84 and 81,099.62 is: 111,910.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,635.26 : 200,963.84 = 81,099.62 : x
  2. Step 2: Convert to fraction form
    145,635.26/200,963.84 = 81,099.62/x
  3. Step 3: Cross multiply
    145,635.26x = 200,963.84 × 81,099.62
  4. Step 4: Simplify right side
    145,635.26x = 16,298,091,057.74
  5. Step 5: Solve for x
    x = 16,298,091,057.74/145,635.26
  6. Step 6: Final answer
    x = 111,910.34

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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.