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Finding the Fourth Proportional to 163,709.77, 245,540.35 and 45,368.77

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Solution

The fourth proportional to 163,709.77, 245,540.35 and 45,368.77 is: 68,046.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,709.77 : 245,540.35 = 45,368.77 : x
  2. Step 2: Convert to fraction form
    163,709.77/245,540.35 = 45,368.77/x
  3. Step 3: Cross multiply
    163,709.77x = 245,540.35 × 45,368.77
  4. Step 4: Simplify right side
    163,709.77x = 11,139,863,664.87
  5. Step 5: Solve for x
    x = 11,139,863,664.87/163,709.77
  6. Step 6: Final answer
    x = 68,046.42

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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.