Home / 155,845.40-215,039.34-92,159.96

Finding the Fourth Proportional to 155,845.40, 215,039.34 and 92,159.96

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Solution

The fourth proportional to 155,845.40, 215,039.34 and 92,159.96 is: 127,164.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,845.40 : 215,039.34 = 92,159.96 : x
  2. Step 2: Convert to fraction form
    155,845.40/215,039.34 = 92,159.96/x
  3. Step 3: Cross multiply
    155,845.40x = 215,039.34 × 92,159.96
  4. Step 4: Simplify right side
    155,845.40x = 19,818,016,972.83
  5. Step 5: Solve for x
    x = 19,818,016,972.83/155,845.40
  6. Step 6: Final answer
    x = 127,164.59

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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.