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Finding the Fourth Proportional to 125,194.56, 187,321 and 87,827.56

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Solution

The fourth proportional to 125,194.56, 187,321 and 87,827.56 is: 131,411.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,194.56 : 187,321 = 87,827.56 : x
  2. Step 2: Convert to fraction form
    125,194.56/187,321 = 87,827.56/x
  3. Step 3: Cross multiply
    125,194.56x = 187,321 × 87,827.56
  4. Step 4: Simplify right side
    125,194.56x = 16,451,946,366.76
  5. Step 5: Solve for x
    x = 16,451,946,366.76/125,194.56
  6. Step 6: Final answer
    x = 131,411.03

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1.5x scale

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.