Home / 156,137.25-215,498.60-89,069.25

Finding the Fourth Proportional to 156,137.25, 215,498.60 and 89,069.25

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Solution

The fourth proportional to 156,137.25, 215,498.60 and 89,069.25 is: 122,932.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,137.25 : 215,498.60 = 89,069.25 : x
  2. Step 2: Convert to fraction form
    156,137.25/215,498.60 = 89,069.25/x
  3. Step 3: Cross multiply
    156,137.25x = 215,498.60 × 89,069.25
  4. Step 4: Simplify right side
    156,137.25x = 19,194,298,232.70
  5. Step 5: Solve for x
    x = 19,194,298,232.70/156,137.25
  6. Step 6: Final answer
    x = 122,932.22

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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.