Home / 187,145.10-280,729.80-98,571.60

Finding the Fourth Proportional to 187,145.10, 280,729.80 and 98,571.60

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Solution

The fourth proportional to 187,145.10, 280,729.80 and 98,571.60 is: 147,863.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,145.10 : 280,729.80 = 98,571.60 : x
  2. Step 2: Convert to fraction form
    187,145.10/280,729.80 = 98,571.60/x
  3. Step 3: Cross multiply
    187,145.10x = 280,729.80 × 98,571.60
  4. Step 4: Simplify right side
    187,145.10x = 27,671,985,553.68
  5. Step 5: Solve for x
    x = 27,671,985,553.68/187,145.10
  6. Step 6: Final answer
    x = 147,863.80

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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.