Home / 143,065.47-197,384.68-82,628.13

Finding the Fourth Proportional to 143,065.47, 197,384.68 and 82,628.13

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Solution

The fourth proportional to 143,065.47, 197,384.68 and 82,628.13 is: 114,000.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,065.47 : 197,384.68 = 82,628.13 : x
  2. Step 2: Convert to fraction form
    143,065.47/197,384.68 = 82,628.13/x
  3. Step 3: Cross multiply
    143,065.47x = 197,384.68 × 82,628.13
  4. Step 4: Simplify right side
    143,065.47x = 16,309,526,999.05
  5. Step 5: Solve for x
    x = 16,309,526,999.05/143,065.47
  6. Step 6: Final answer
    x = 114,000.44

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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.