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Finding the Fourth Proportional to 163,805.94, 245,713.77 and 45,486

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Solution

The fourth proportional to 163,805.94, 245,713.77 and 45,486 is: 68,230.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,805.94 : 245,713.77 = 45,486 : x
  2. Step 2: Convert to fraction form
    163,805.94/245,713.77 = 45,486/x
  3. Step 3: Cross multiply
    163,805.94x = 245,713.77 × 45,486
  4. Step 4: Simplify right side
    163,805.94x = 11,176,536,542.22
  5. Step 5: Solve for x
    x = 11,176,536,542.22/163,805.94
  6. Step 6: Final answer
    x = 68,230.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.