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Finding the Fourth Proportional to 137,166.08, 205,638.40 and 126,094.40

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Solution

The fourth proportional to 137,166.08, 205,638.40 and 126,094.40 is: 189,039.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,166.08 : 205,638.40 = 126,094.40 : x
  2. Step 2: Convert to fraction form
    137,166.08/205,638.40 = 126,094.40/x
  3. Step 3: Cross multiply
    137,166.08x = 205,638.40 × 126,094.40
  4. Step 4: Simplify right side
    137,166.08x = 25,929,849,794.39
  5. Step 5: Solve for x
    x = 25,929,849,794.39/137,166.08
  6. Step 6: Final answer
    x = 189,039.81

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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.