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Finding the Fourth Proportional to 156,099.02, 215,418.24 and 84,480.57

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Solution

The fourth proportional to 156,099.02, 215,418.24 and 84,480.57 is: 116,584.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,099.02 : 215,418.24 = 84,480.57 : x
  2. Step 2: Convert to fraction form
    156,099.02/215,418.24 = 84,480.57/x
  3. Step 3: Cross multiply
    156,099.02x = 215,418.24 × 84,480.57
  4. Step 4: Simplify right side
    156,099.02x = 18,198,655,703.60
  5. Step 5: Solve for x
    x = 18,198,655,703.60/156,099.02
  6. Step 6: Final answer
    x = 116,584.05

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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.