Home / 154,610.02-231,918.81-87,571.18

Finding the Fourth Proportional to 154,610.02, 231,918.81 and 87,571.18

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Solution

The fourth proportional to 154,610.02, 231,918.81 and 87,571.18 is: 131,358.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,610.02 : 231,918.81 = 87,571.18 : x
  2. Step 2: Convert to fraction form
    154,610.02/231,918.81 = 87,571.18/x
  3. Step 3: Cross multiply
    154,610.02x = 231,918.81 × 87,571.18
  4. Step 4: Simplify right side
    154,610.02x = 20,309,403,855.90
  5. Step 5: Solve for x
    x = 20,309,403,855.90/154,610.02
  6. Step 6: Final answer
    x = 131,358.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.