Home / 156,291.50-215,682.36-84,672.02

Finding the Fourth Proportional to 156,291.50, 215,682.36 and 84,672.02

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Solution

The fourth proportional to 156,291.50, 215,682.36 and 84,672.02 is: 116,847.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,291.50 : 215,682.36 = 84,672.02 : x
  2. Step 2: Convert to fraction form
    156,291.50/215,682.36 = 84,672.02/x
  3. Step 3: Cross multiply
    156,291.50x = 215,682.36 × 84,672.02
  4. Step 4: Simplify right side
    156,291.50x = 18,262,261,099.57
  5. Step 5: Solve for x
    x = 18,262,261,099.57/156,291.50
  6. Step 6: Final answer
    x = 116,847.44

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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.