Home / 187,135.72-280,200.57-142,550.08

Finding the Fourth Proportional to 187,135.72, 280,200.57 and 142,550.08

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Solution

The fourth proportional to 187,135.72, 280,200.57 and 142,550.08 is: 213,441.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,135.72 : 280,200.57 = 142,550.08 : x
  2. Step 2: Convert to fraction form
    187,135.72/280,200.57 = 142,550.08/x
  3. Step 3: Cross multiply
    187,135.72x = 280,200.57 × 142,550.08
  4. Step 4: Simplify right side
    187,135.72x = 39,942,612,434.48
  5. Step 5: Solve for x
    x = 39,942,612,434.48/187,135.72
  6. Step 6: Final answer
    x = 213,441.95

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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.