Home / 187,291.72-280,895.44-54,142.32

Finding the Fourth Proportional to 187,291.72, 280,895.44 and 54,142.32

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Solution

The fourth proportional to 187,291.72, 280,895.44 and 54,142.32 is: 81,201.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,291.72 : 280,895.44 = 54,142.32 : x
  2. Step 2: Convert to fraction form
    187,291.72/280,895.44 = 54,142.32/x
  3. Step 3: Cross multiply
    187,291.72x = 280,895.44 × 54,142.32
  4. Step 4: Simplify right side
    187,291.72x = 15,208,330,799.02
  5. Step 5: Solve for x
    x = 15,208,330,799.02/187,291.72
  6. Step 6: Final answer
    x = 81,201.30

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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.