Home / 158,021.40-237,453.30-87,000.60

Finding the Fourth Proportional to 158,021.40, 237,453.30 and 87,000.60

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Solution

The fourth proportional to 158,021.40, 237,453.30 and 87,000.60 is: 130,732.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,021.40 : 237,453.30 = 87,000.60 : x
  2. Step 2: Convert to fraction form
    158,021.40/237,453.30 = 87,000.60/x
  3. Step 3: Cross multiply
    158,021.40x = 237,453.30 × 87,000.60
  4. Step 4: Simplify right side
    158,021.40x = 20,658,579,571.98
  5. Step 5: Solve for x
    x = 20,658,579,571.98/158,021.40
  6. Step 6: Final answer
    x = 130,732.80

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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.