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Finding the Fourth Proportional to 163,806.94, 245,715.27 and 45,487

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Solution

The fourth proportional to 163,806.94, 245,715.27 and 45,487 is: 68,231.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,806.94 : 245,715.27 = 45,487 : x
  2. Step 2: Convert to fraction form
    163,806.94/245,715.27 = 45,487/x
  3. Step 3: Cross multiply
    163,806.94x = 245,715.27 × 45,487
  4. Step 4: Simplify right side
    163,806.94x = 11,176,850,486.49
  5. Step 5: Solve for x
    x = 11,176,850,486.49/163,806.94
  6. Step 6: Final answer
    x = 68,231.85

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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.