Home / 150,817.30-208,104.73-87,142.79

Finding the Fourth Proportional to 150,817.30, 208,104.73 and 87,142.79

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Solution

The fourth proportional to 150,817.30, 208,104.73 and 87,142.79 is: 120,243.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,817.30 : 208,104.73 = 87,142.79 : x
  2. Step 2: Convert to fraction form
    150,817.30/208,104.73 = 87,142.79/x
  3. Step 3: Cross multiply
    150,817.30x = 208,104.73 × 87,142.79
  4. Step 4: Simplify right side
    150,817.30x = 18,134,827,086.80
  5. Step 5: Solve for x
    x = 18,134,827,086.80/150,817.30
  6. Step 6: Final answer
    x = 120,243.68

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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.