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Finding the Fourth Proportional to 163,502, 245,119.44 and 84,638.96

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Solution

The fourth proportional to 163,502, 245,119.44 and 84,638.96 is: 126,889.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,502 : 245,119.44 = 84,638.96 : x
  2. Step 2: Convert to fraction form
    163,502/245,119.44 = 84,638.96/x
  3. Step 3: Cross multiply
    163,502x = 245,119.44 × 84,638.96
  4. Step 4: Simplify right side
    163,502x = 20,746,654,477.38
  5. Step 5: Solve for x
    x = 20,746,654,477.38/163,502
  6. Step 6: Final answer
    x = 126,889.30

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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.