Home / 155,821.44-215,077.70-92,181.36

Finding the Fourth Proportional to 155,821.44, 215,077.70 and 92,181.36

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Solution

The fourth proportional to 155,821.44, 215,077.70 and 92,181.36 is: 127,236.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,821.44 : 215,077.70 = 92,181.36 : x
  2. Step 2: Convert to fraction form
    155,821.44/215,077.70 = 92,181.36/x
  3. Step 3: Cross multiply
    155,821.44x = 215,077.70 × 92,181.36
  4. Step 4: Simplify right side
    155,821.44x = 19,826,154,891.67
  5. Step 5: Solve for x
    x = 19,826,154,891.67/155,821.44
  6. Step 6: Final answer
    x = 127,236.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.