Home / 135,960.22-203,730.74-72,788.72

Finding the Fourth Proportional to 135,960.22, 203,730.74 and 72,788.72

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Solution

The fourth proportional to 135,960.22, 203,730.74 and 72,788.72 is: 109,070.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,960.22 : 203,730.74 = 72,788.72 : x
  2. Step 2: Convert to fraction form
    135,960.22/203,730.74 = 72,788.72/x
  3. Step 3: Cross multiply
    135,960.22x = 203,730.74 × 72,788.72
  4. Step 4: Simplify right side
    135,960.22x = 14,829,299,425.31
  5. Step 5: Solve for x
    x = 14,829,299,425.31/135,960.22
  6. Step 6: Final answer
    x = 109,070.87

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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.