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Finding the Fourth Proportional to 163,886.39, 245,789.09 and 45,551.87

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Solution

The fourth proportional to 163,886.39, 245,789.09 and 45,551.87 is: 68,316.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,886.39 : 245,789.09 = 45,551.87 : x
  2. Step 2: Convert to fraction form
    163,886.39/245,789.09 = 45,551.87/x
  3. Step 3: Cross multiply
    163,886.39x = 245,789.09 × 45,551.87
  4. Step 4: Simplify right side
    163,886.39x = 11,196,152,447.34
  5. Step 5: Solve for x
    x = 11,196,152,447.34/163,886.39
  6. Step 6: Final answer
    x = 68,316.55

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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.