Home / 143,107.05-197,468.18-85,733.54

Finding the Fourth Proportional to 143,107.05, 197,468.18 and 85,733.54

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Solution

The fourth proportional to 143,107.05, 197,468.18 and 85,733.54 is: 118,300.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,107.05 : 197,468.18 = 85,733.54 : x
  2. Step 2: Convert to fraction form
    143,107.05/197,468.18 = 85,733.54/x
  3. Step 3: Cross multiply
    143,107.05x = 197,468.18 × 85,733.54
  4. Step 4: Simplify right side
    143,107.05x = 16,929,645,754.76
  5. Step 5: Solve for x
    x = 16,929,645,754.76/143,107.05
  6. Step 6: Final answer
    x = 118,300.57

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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.