Home / 137,060.10-205,460.55-80,943.30

Finding the Fourth Proportional to 137,060.10, 205,460.55 and 80,943.30

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Solution

The fourth proportional to 137,060.10, 205,460.55 and 80,943.30 is: 121,338.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,060.10 : 205,460.55 = 80,943.30 : x
  2. Step 2: Convert to fraction form
    137,060.10/205,460.55 = 80,943.30/x
  3. Step 3: Cross multiply
    137,060.10x = 205,460.55 × 80,943.30
  4. Step 4: Simplify right side
    137,060.10x = 16,630,654,936.82
  5. Step 5: Solve for x
    x = 16,630,654,936.82/137,060.10
  6. Step 6: Final answer
    x = 121,338.41

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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.