Home / 215,584.22-323,415.36-89,155.88

Finding the Fourth Proportional to 215,584.22, 323,415.36 and 89,155.88

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Solution

The fourth proportional to 215,584.22, 323,415.36 and 89,155.88 is: 133,749.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,584.22 : 323,415.36 = 89,155.88 : x
  2. Step 2: Convert to fraction form
    215,584.22/323,415.36 = 89,155.88/x
  3. Step 3: Cross multiply
    215,584.22x = 323,415.36 × 89,155.88
  4. Step 4: Simplify right side
    215,584.22x = 28,834,381,026.32
  5. Step 5: Solve for x
    x = 28,834,381,026.32/215,584.22
  6. Step 6: Final answer
    x = 133,749.96

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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.