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Finding the Fourth Proportional to 131,832, 181,953.44 and 103,094.72

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Solution

The fourth proportional to 131,832, 181,953.44 and 103,094.72 is: 142,290.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,832 : 181,953.44 = 103,094.72 : x
  2. Step 2: Convert to fraction form
    131,832/181,953.44 = 103,094.72/x
  3. Step 3: Cross multiply
    131,832x = 181,953.44 × 103,094.72
  4. Step 4: Simplify right side
    131,832x = 18,758,438,949.84
  5. Step 5: Solve for x
    x = 18,758,438,949.84/131,832
  6. Step 6: Final answer
    x = 142,290.48

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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.