Home / 150,968.27-208,336.64-86,438.49

Finding the Fourth Proportional to 150,968.27, 208,336.64 and 86,438.49

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Solution

The fourth proportional to 150,968.27, 208,336.64 and 86,438.49 is: 119,285.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,968.27 : 208,336.64 = 86,438.49 : x
  2. Step 2: Convert to fraction form
    150,968.27/208,336.64 = 86,438.49/x
  3. Step 3: Cross multiply
    150,968.27x = 208,336.64 × 86,438.49
  4. Step 4: Simplify right side
    150,968.27x = 18,008,305,457.39
  5. Step 5: Solve for x
    x = 18,008,305,457.39/150,968.27
  6. Step 6: Final answer
    x = 119,285.37

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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.