Home / 137,214.76-206,166.66-87,316.60

Finding the Fourth Proportional to 137,214.76, 206,166.66 and 87,316.60

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Solution

The fourth proportional to 137,214.76, 206,166.66 and 87,316.60 is: 131,194.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,214.76 : 206,166.66 = 87,316.60 : x
  2. Step 2: Convert to fraction form
    137,214.76/206,166.66 = 87,316.60/x
  3. Step 3: Cross multiply
    137,214.76x = 206,166.66 × 87,316.60
  4. Step 4: Simplify right side
    137,214.76x = 18,001,771,784.56
  5. Step 5: Solve for x
    x = 18,001,771,784.56/137,214.76
  6. Step 6: Final answer
    x = 131,194.14

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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.