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Finding the Fourth Proportional to 163,993.92, 245,939.04 and 53,160

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Solution

The fourth proportional to 163,993.92, 245,939.04 and 53,160 is: 79,723.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,993.92 : 245,939.04 = 53,160 : x
  2. Step 2: Convert to fraction form
    163,993.92/245,939.04 = 53,160/x
  3. Step 3: Cross multiply
    163,993.92x = 245,939.04 × 53,160
  4. Step 4: Simplify right side
    163,993.92x = 13,074,119,366.40
  5. Step 5: Solve for x
    x = 13,074,119,366.40/163,993.92
  6. Step 6: Final answer
    x = 79,723.20

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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.