Home / 137,314.26-206,316.45-87,416.64

Finding the Fourth Proportional to 137,314.26, 206,316.45 and 87,416.64

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Solution

The fourth proportional to 137,314.26, 206,316.45 and 87,416.64 is: 131,344.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,314.26 : 206,316.45 = 87,416.64 : x
  2. Step 2: Convert to fraction form
    137,314.26/206,316.45 = 87,416.64/x
  3. Step 3: Cross multiply
    137,314.26x = 206,316.45 × 87,416.64
  4. Step 4: Simplify right side
    137,314.26x = 18,035,490,835.73
  5. Step 5: Solve for x
    x = 18,035,490,835.73/137,314.26
  6. Step 6: Final answer
    x = 131,344.63

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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.