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Finding the Fourth Proportional to 145,919.88, 201,235.14 and 92,111.88

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Solution

The fourth proportional to 145,919.88, 201,235.14 and 92,111.88 is: 127,029.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,919.88 : 201,235.14 = 92,111.88 : x
  2. Step 2: Convert to fraction form
    145,919.88/201,235.14 = 92,111.88/x
  3. Step 3: Cross multiply
    145,919.88x = 201,235.14 × 92,111.88
  4. Step 4: Simplify right side
    145,919.88x = 18,536,147,067.46
  5. Step 5: Solve for x
    x = 18,536,147,067.46/145,919.88
  6. Step 6: Final answer
    x = 127,029.62

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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.