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Finding the Fourth Proportional to 163,448.92, 245,187.49 and 45,120.28

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Solution

The fourth proportional to 163,448.92, 245,187.49 and 45,120.28 is: 67,684.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,448.92 : 245,187.49 = 45,120.28 : x
  2. Step 2: Convert to fraction form
    163,448.92/245,187.49 = 45,120.28/x
  3. Step 3: Cross multiply
    163,448.92x = 245,187.49 × 45,120.28
  4. Step 4: Simplify right side
    163,448.92x = 11,062,927,031.76
  5. Step 5: Solve for x
    x = 11,062,927,031.76/163,448.92
  6. Step 6: Final answer
    x = 67,684.31

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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.