Home / 150,864.48-208,169.84-87,189.98

Finding the Fourth Proportional to 150,864.48, 208,169.84 and 87,189.98

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Solution

The fourth proportional to 150,864.48, 208,169.84 and 87,189.98 is: 120,308.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,864.48 : 208,169.84 = 87,189.98 : x
  2. Step 2: Convert to fraction form
    150,864.48/208,169.84 = 87,189.98/x
  3. Step 3: Cross multiply
    150,864.48x = 208,169.84 × 87,189.98
  4. Step 4: Simplify right side
    150,864.48x = 18,150,324,186.20
  5. Step 5: Solve for x
    x = 18,150,324,186.20/150,864.48
  6. Step 6: Final answer
    x = 120,308.80

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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.