Home / 150,936.30-208,287.69-86,403.39

Finding the Fourth Proportional to 150,936.30, 208,287.69 and 86,403.39

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Solution

The fourth proportional to 150,936.30, 208,287.69 and 86,403.39 is: 119,234.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,936.30 : 208,287.69 = 86,403.39 : x
  2. Step 2: Convert to fraction form
    150,936.30/208,287.69 = 86,403.39/x
  3. Step 3: Cross multiply
    150,936.30x = 208,287.69 × 86,403.39
  4. Step 4: Simplify right side
    150,936.30x = 17,996,762,511.27
  5. Step 5: Solve for x
    x = 17,996,762,511.27/150,936.30
  6. Step 6: Final answer
    x = 119,234.16

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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.