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Finding the Fourth Proportional to 187,778.63, 259,122.25 and 119,788.31

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Solution

The fourth proportional to 187,778.63, 259,122.25 and 119,788.31 is: 165,300.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,778.63 : 259,122.25 = 119,788.31 : x
  2. Step 2: Convert to fraction form
    187,778.63/259,122.25 = 119,788.31/x
  3. Step 3: Cross multiply
    187,778.63x = 259,122.25 × 119,788.31
  4. Step 4: Simplify right side
    187,778.63x = 31,039,815,491.35
  5. Step 5: Solve for x
    x = 31,039,815,491.35/187,778.63
  6. Step 6: Final answer
    x = 165,300.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.