Home / 137,034.68-205,401.09-89,630.24

Finding the Fourth Proportional to 137,034.68, 205,401.09 and 89,630.24

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Solution

The fourth proportional to 137,034.68, 205,401.09 and 89,630.24 is: 134,346.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,034.68 : 205,401.09 = 89,630.24 : x
  2. Step 2: Convert to fraction form
    137,034.68/205,401.09 = 89,630.24/x
  3. Step 3: Cross multiply
    137,034.68x = 205,401.09 × 89,630.24
  4. Step 4: Simplify right side
    137,034.68x = 18,410,148,992.96
  5. Step 5: Solve for x
    x = 18,410,148,992.96/137,034.68
  6. Step 6: Final answer
    x = 134,346.64

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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.