Home / 150,758.28-208,084.14-87,136.02

Finding the Fourth Proportional to 150,758.28, 208,084.14 and 87,136.02

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Solution

The fourth proportional to 150,758.28, 208,084.14 and 87,136.02 is: 120,269.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,758.28 : 208,084.14 = 87,136.02 : x
  2. Step 2: Convert to fraction form
    150,758.28/208,084.14 = 87,136.02/x
  3. Step 3: Cross multiply
    150,758.28x = 208,084.14 × 87,136.02
  4. Step 4: Simplify right side
    150,758.28x = 18,131,623,784.72
  5. Step 5: Solve for x
    x = 18,131,623,784.72/150,758.28
  6. Step 6: Final answer
    x = 120,269.51

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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.