Home / 131,805.16-181,935.48-80,122.08

Finding the Fourth Proportional to 131,805.16, 181,935.48 and 80,122.08

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Solution

The fourth proportional to 131,805.16, 181,935.48 and 80,122.08 is: 110,595.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,805.16 : 181,935.48 = 80,122.08 : x
  2. Step 2: Convert to fraction form
    131,805.16/181,935.48 = 80,122.08/x
  3. Step 3: Cross multiply
    131,805.16x = 181,935.48 × 80,122.08
  4. Step 4: Simplify right side
    131,805.16x = 14,577,049,083.40
  5. Step 5: Solve for x
    x = 14,577,049,083.40/131,805.16
  6. Step 6: Final answer
    x = 110,595.44

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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.