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Finding the Fourth Proportional to 120,490.92, 180,785.91 and 52,988.22

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Solution

The fourth proportional to 120,490.92, 180,785.91 and 52,988.22 is: 79,504.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,490.92 : 180,785.91 = 52,988.22 : x
  2. Step 2: Convert to fraction form
    120,490.92/180,785.91 = 52,988.22/x
  3. Step 3: Cross multiply
    120,490.92x = 180,785.91 × 52,988.22
  4. Step 4: Simplify right side
    120,490.92x = 9,579,523,571.98
  5. Step 5: Solve for x
    x = 9,579,523,571.98/120,490.92
  6. Step 6: Final answer
    x = 79,504.11

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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.