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Finding the Fourth Proportional to 131,561.44, 181,552.08 and 71,945.44

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Solution

The fourth proportional to 131,561.44, 181,552.08 and 71,945.44 is: 99,283.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,561.44 : 181,552.08 = 71,945.44 : x
  2. Step 2: Convert to fraction form
    131,561.44/181,552.08 = 71,945.44/x
  3. Step 3: Cross multiply
    131,561.44x = 181,552.08 × 71,945.44
  4. Step 4: Simplify right side
    131,561.44x = 13,061,844,278.52
  5. Step 5: Solve for x
    x = 13,061,844,278.52/131,561.44
  6. Step 6: Final answer
    x = 99,283.23

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1.5x scale

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.