Home / 131,702.45-181,749.38-71,273.09

Finding the Fourth Proportional to 131,702.45, 181,749.38 and 71,273.09

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Solution

The fourth proportional to 131,702.45, 181,749.38 and 71,273.09 is: 98,356.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,702.45 : 181,749.38 = 71,273.09 : x
  2. Step 2: Convert to fraction form
    131,702.45/181,749.38 = 71,273.09/x
  3. Step 3: Cross multiply
    131,702.45x = 181,749.38 × 71,273.09
  4. Step 4: Simplify right side
    131,702.45x = 12,953,839,918.18
  5. Step 5: Solve for x
    x = 12,953,839,918.18/131,702.45
  6. Step 6: Final answer
    x = 98,356.86

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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.